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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-Q





(Mark One)



|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2008
|- | -------------------------------------------------------------------------------------------------------------------------------------

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

Commission File Number 000-51786





NightHawk Radiology Holdings,
Inc.

(Exact name of registrant as specified in its charter)







|                                                               |  |                                  
|-------------------------------------------------------------- |  | ---------------------------------
|Delaware                                                       |  | 87-0722777                       
|(State or other jurisdiction of incorporation or organization) |  | (IRS Employer Identification No.)
|                                                               | 
|250 Northwest Boulevard, #202, Coeur dAlene, Idaho            |  | 83814                            
|(Address of principal executive offices))                      |  | (Zip code)                       

(208) 676-8321

(Registrants telephone number, including area code)





Indicate by check mark whether
the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days.  Yes  x    No   ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of
accelerated filer and large accelerated filer in Rule 12b-2 of the Exchange Act.

Large accelerated filer   ̈        Accelerated filer  x        Non-accelerated filer   ̈        Small reporting company   ̈

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes   ̈    No  x

As of May 2, 2008,
30,735,015 shares of the Registrants common stock were outstanding.









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##### Table of Contents

TABLE OF CONTENTS



|           |  |                                                                                       |  |   
|---------- |  | ------------------------------------------------------------------------------------- |  | --
|Part I     |  | 3                                                                                    
|           |  |                                                                                      
|Item 1.    |  | Financial Statements                                                                  |  | 3 
|           |  |                                                                                      
|           |  | Condensed Consolidated Balance Sheets                                                 |  | 3 
|           |  |                                                                                      
|           |  | Condensed Consolidated Statements of Operations                                       |  | 4 
|           |  |                                                                                      
|           |  | Condensed Consolidated Statements of Cash Flows                                       |  | 5 
|           |  |                                                                                      
|           |  | Condensed Consolidated Statements of Comprehensive Income (Loss)                      |  | 7 
|           |  |                                                                                      
|           |  | Notes to Condensed Consolidated Financial Statements                                  |  | 8 
|           |  |                                                                                      
|Item 2.    |  | Managements Discussion and Analysis of Financial Condition and Results of Operations |  | 20
|           |  |                                                                                      
|Item 3.    |  | Quantitative and Qualitative Disclosures About Market Risk                            |  | 30
|           |  |                                                                                      
|Item 4.    |  | Controls and Procedures                                                               |  | 30
|           | 
|Part II    |  | 31                                                                                   
|           |  |                                                                                      
|Item 1.    |  | Legal Proceedings                                                                     |  | 31
|           |  |                                                                                      
|Item 1A.   |  | Risk Factors                                                                          |  | 31
|           |  |                                                                                      
|Item 2.    |  | Unregistered Sales of Equity Securities and Use of Proceeds                           |  | 41
|           |  |                                                                                      
|Item 6.    |  | Exhibits                                                                              |  | 42
|           | 
|Signatures |  | 43                                                                                   



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PART 1  FINANCIAL INFORMATION



|Item 1. | Financial Statements
|------- | --------------------

NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited)

(In thousands, except share data)



|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------- | -------- | - | ---------------- | - | -------- | -
|                                                                                                                                                                           |  | March 31,2008 |          |   | December 31,2007 |  
|ASSETS                                                                                                                                                                     |  |               |          |   |                  |   |          |  
|Current assets:                                                                                                                                                            |  |               |          |   |                  |   |          |  
|Cash and cash equivalents                                                                                                                                                  |  | $             | 33,620   |   |                  | $ | 31,956   |  
|Marketable securities                                                                                                                                                      |  |               | 33,216   |   |                  |   | 30,625   |  
|Trade accounts receivable, net                                                                                                                                             |  |               | 25,181   |   |                  |   | 25,665   |  
|Deferred income taxes                                                                                                                                                      |  |               | 160      |   |                  |   | 655      |  
|Prepaid expenses and other current assets                                                                                                                                  |  |               | 5,476    |   |                  |   | 2,812    |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|Total current assets                                                                                                                                                       |  |               | 97,653   |   |                  |   | 91,713   |  
|Property and equipment, net                                                                                                                                                |  |               | 11,746   |   |                  |   | 10,555   |  
|Goodwill                                                                                                                                                                   |  |               | 68,930   |   |                  |   | 68,601   |  
|Intangible assets, net                                                                                                                                                     |  |               | 85,250   |   |                  |   | 87,133   |  
|Deferred income taxes                                                                                                                                                      |  |               | 2,968    |   |                  |   | 1,251    |  
|Other assets, net                                                                                                                                                          |  |               | 4,072    |   |                  |   | 4,213    |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|Total                                                                                                                                                                      |  | $             | 270,619  |   |                  | $ | 263,466  |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|LIABILITIES                                                                                                                                                                |  |               |          |   |                  |   |          |  
|Current liabilities:                                                                                                                                                       |  |               |          |   |                  |   |          |  
|Accounts payable                                                                                                                                                           |  | $             | 6,915    |   |                  | $ | 6,071    |  
|Accrued expenses and other liabilities                                                                                                                                     |  |               | 11,017   |   |                  |   | 12,881   |  
|Accrued payroll and related benefits                                                                                                                                       |  |               | 3,266    |   |                  |   | 4,570    |  
|Long-term debt, due within one year                                                                                                                                        |  |               | 1,000    |   |                  |   | 1,000    |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|Total current liabilities                                                                                                                                                  |  |               | 22,198   |   |                  |   | 24,522   |  
|Insurance reserve                                                                                                                                                          |  |               | 3,907    |   |                  |   | 3,038    |  
|Long-term debt                                                                                                                                                             |  |               | 98,250   |   |                  |   | 98,500   |  
|Other liabilities                                                                                                                                                          |  |               | 5,472    |   |                  |   | 2,717    |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|Total liabilities                                                                                                                                                          |  |               | 129,827  |   |                  |   | 128,777  |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|Commitments and contingencies (Note 6)                                                                                                                                     |  |               |          |   |                  |   |          |  
|STOCKHOLDERS EQUITY                                                                                                                                                       |  |               |          |   |                  |   |          |  
|Common stock150,000,000 shares authorized; $.001 par value; 30,710,271 and 30,312,322 shares issued and outstanding at March 31,
2008 and December 31, 2007, respectively |  |               | 31       |   |                  |   | 30       |  
|Additional paid-in capital                                                                                                                                                 |  |               | 256,270  |   |                  |   | 249,274  |  
|Retained earnings (deficit)                                                                                                                                                |  |               | (112,226 | ) |                  |   | (112,957 | )
|Accumulated other comprehensive income (deficit)                                                                                                                           |  |               | (3,283   | ) |                  |   | (1,658   | )
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|Total stockholders equity                                                                                                                                                 |  |               | 140,792  |   |                  |   | 134,689  |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  
|Total                                                                                                                                                                      |  | $             | 270,619  |   |                  | $ | 263,466  |  
|                                                                                                                                                                           |  |               |          |   |                  |   |          |  

See Notes to Condensed Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(unaudited)

(In thousands, except share data)



|                                                                                               |  |                             |            |   |      |   |            |  
|---------------------------------------------------------------------------------------------- |  | --------------------------- | ---------- | - | ---- | - | ---------- | -
|                                                                                               |  | Three Months EndedMarch 31, |           
|                                                                                               |  | 2008                        |            |   | 2007 |  
|Service revenue                                                                                |  | $                           | 41,688     |   |      | $ | 25,882     |  
|Operating costs and expenses:                                                                  |  |                             |            |   |      |   |            |  
|Professional services (includes non-cash compensation expense of $590 and $960)                |  |                             | 17,867     |   |      |   | 10,373     |  
|Sales, general, and administrative (includes non-cash compensation expense of $2,356 and $838) |  |                             | 18,170     |   |      |   | 8,464      |  
|Depreciation and amortization                                                                  |  |                             | 2,798      |   |      |   | 850        |  
|                                                                                               |  |                             |            |   |      |   |            |  
|Total operating costs and expenses                                                             |  |                             | 38 ,835    |   |      |   | 19,687     |  
|                                                                                               |  |                             |            |   |      |   |            |  
|Operating income                                                                               |  |                             | 2,853      |   |      |   | 6,195      |  
|Other income (expense):                                                                        |  |                             |            |   |      |   |            |  
|Interest expense                                                                               |  |                             | (2,187     | ) |      |   | (1         | )
|Interest income                                                                                |  |                             | 527        |   |      |   | 888        |  
|Other, net                                                                                     |  |                             | 28         |   |      |   | (2         | )
|                                                                                               |  |                             |            |   |      |   |            |  
|Total other income (expense)                                                                   |  |                             | (1,632     | ) |      |   | 885        |  
|                                                                                               |  |                             |            |   |      |   |            |  
|Income before income taxes                                                                     |  |                             | 1,221      |   |      |   | 7,080      |  
|Income tax expense                                                                             |  |                             | 490        |   |      |   | 2,748      |  
|                                                                                               |  |                             |            |   |      |   |            |  
|Net income                                                                                     |  | $                           | 731        |   |      | $ | 4,332      |  
|                                                                                               |  |                             |            |   |      |   |            |  
|Earnings per common share:                                                                     |  |                             |            |   |      |   |            |  
|Basic                                                                                          |  | $                           | 0.02       |   |      | $ | 0.14       |  
|Diluted                                                                                        |  | $                           | 0.02       |   |      | $ | 0.14       |  
|Weighted averages of common shares outstanding:                                                |  |                             |            |   |      |   |            |  
|Basic                                                                                          |  |                             | 30,444,195 |   |      |   | 29,960,256 |  
|Diluted                                                                                        |  |                             | 31,424,363 |   |      |   | 30,881,728 |  

See Notes to Condensed Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(unaudited)

(In thousands)



|                                                                                  |  |                             |         |   |      |   |         |  
|--------------------------------------------------------------------------------- |  | --------------------------- | ------- | - | ---- | - | ------- | -
|                                                                                  |  | Three Months EndedMarch 31, |        
|                                                                                  |  | 2008                        |         |   | 2007 |  
|Cash flows from operating activities:                                             |  |                             |         |   |      |   |         |  
|Net income                                                                        |  | $                           | 731     |   |      | $ | 4,332   |  
|Adjustments to reconcile net income to net cash provided by operating activities: |  |                             |         |   |      |   |         |  
|Depreciation and amortization                                                     |  |                             | 2,798   |   |      |   | 850     |  
|Accretion of discounts on marketable securities                                   |  |                             | (52     | ) |      |   | (135    | )
|Amortization of debt issuance costs                                               |  |                             | 162     |   |      |   |        |  
|Other loss (income)                                                               |  |                             | 51      |   |      |   | (24     | )
|Deferred income taxes                                                             |  |                             | (170    | ) |      |   | (490    | )
|Non-cash stock compensation expense                                               |  |                             | 2,946   |   |      |   | 1,798   |  
|Excess tax benefit from exercise of stock options                                 |  |                             | (79     | ) |      |   | (198    | )
|Provision for doubtful accounts and sales credits                                 |  |                             | 190     |   |      |   | 42      |  
|Changes in operating assets and liabilities (excluding effects of acquisitions):  |  |                             |         |   |      |   |         |  
|Trade accounts receivable, net                                                    |  |                             | 224     |   |      |   | 404     |  
|Prepaid expenses and other assets                                                 |  |                             | (2,478  | ) |      |   | (604    | )
|Accounts payable                                                                  |  |                             | 321     |   |      |   | 692     |  
|Accrued expenses and other liabilities                                            |  |                             | 579     |   |      |   | 2,258   |  
|Accrued payroll and related benefits                                              |  |                             | 580     |   |      |   | (705    | )
|                                                                                  |  |                             |         |   |      |   |         |  
|Net cash provided by operating activities                                         |  |                             | 5,803   |   |      |   | 8,220   |  
|                                                                                  |  |                             |         |   |      |   |         |  
|Cash flows from investing activities:                                             |  |                             |         |   |      |   |         |  
|Purchase of marketable securities                                                 |  |                             | (10,305 | ) |      |   | (11,420 | )
|Proceeds from maturities of marketable securities                                 |  |                             | 7,765   |   |      |   | 17,878  |  
|Purchase of property and equipment                                                |  |                             | (1,634  | ) |      |   | (1,205  | )
|Cash and cash equivalents from acquisition, net                                   |  |                             |        |   |      |   | 78      |  
|Cash paid for acquisition                                                         |  |                             |        |   |      |   | (21,850 | )
|                                                                                  |  |                             |         |   |      |   |         |  
|Net cash used in investing activities                                             |  |                             | (4,174  | ) |      |   | (16,519 | )
|                                                                                  |  |                             |         |   |      |   |         |  
|Cash flows from financing activities:                                             |  |                             |         |   |      |   |         |  
|Repayment of notes payable and debt                                               |  |                             | (250    | ) |      |   |        |  
|Excess tax benefit from exercise of stock options                                 |  |                             | 79      |   |      |   | 198     |  
|Proceeds from exercise of stock options                                           |  |                             | 206     |   |      |   | 226     |  
|                                                                                  |  |                             |         |   |      |   |         |  
|Net cash provided by financing activities                                         |  |                             | 35      |   |      |   | 424     |  
|                                                                                  |  |                             |         |   |      |   |         |  
|Net increase (decrease) in cash and cash equivalents                              |  |                             | 1,664   |   |      |   | (7,875  | )
|Cash and cash equivalentsbeginning of period                                     |  |                             | 31,956  |   |      |   | 46,501  |  
|                                                                                  |  |                             |         |   |      |   |         |  
|Cash and cash equivalentsend of period                                           |  | $                           | 33,620  |   |      | $ | 38,626  |  
|                                                                                  |  |                             |         |   |      |   |         |  

See Notes to Condensed Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(Continued)

(unaudited)



|                                                                      |  |                             |       |      |   |     |  
|--------------------------------------------------------------------- |  | --------------------------- | ----- | ---- | - | --- | -
|                                                                      |  | Three Months EndedMarch 31, |      
|                                                                      |  | 2008                        |       | 2007 |  
|Supplemental disclosures of cash flow information:                    |  |                             |       |      |   |     |  
|Cash paid for interest                                                |  | $                           | 1,991 |      | $ | 1   |  
|Cash paid (received) for income taxes                                 |  |                             | 374   |      |   | (40 | )
|Non-cash investing and financing activities:                          |  |                             |       |      |   |     |  
|Purchases of equipment included in accounts payable                   |  |                             | 522   |      |   | 65  |  
|Earnout liability included in accrued expenses settled in stock       |  |                             | 2,078 |      |   |    |  
|Debt issuance costs included in accounts payable and accrued expenses |  |                             |      |      |   | 150 |  
|Acquisition costs included in accounts payable and accrued expenses   |  |                             |      |      |   | 100 |  

See Notes to Condensed Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(LOSS)

(In thousands)



|                                            |  |                             |        |   |      |   |      
|------------------------------------------- |  | --------------------------- | ------ | - | ---- | - | -----
|                                            |  | Three Months EndedMarch 31,
|                                            |  | 2008                        |        |   | 2007
|Net income                                  |  | $                           | 731    |   |      | $ | 4,332
|Other comprehensive income:                 |  |                             |        |   |      |   |      
|Change in fair value of interest rate swaps |  |                             | (2,678 | ) |      |   |     
|Less deferred income taxes                  |  |                             | 1,052  |   |      |   |     
|                                            |  |                             |        |   |      |   |      
|Net other comprehensive income (loss)       |  |                             | (1,626 | ) |      |   |     
|                                            |  |                             |        |   |      |   |      
|Comprehensive income (loss)                 |  | $                           | (895   | ) |      | $ | 4,332
|                                            |  |                             |        |   |      |   |      

See Notes to Condensed Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1. SUMMARY OF
SIGNIFICANT ACCOUNTING POLICIES

Basis of PresentationThe accompanying unaudited condensed consolidated financial
statements include the results of operations, financial position and cash flows of the Nighthawk Radiology Holdings, Inc and its subsidiaries (the Company). All material intercompany balances have been eliminated.

In the opinion of the Companys management, the accompanying unaudited condensed consolidated financial statements include all adjustments necessary
to present fairly, in all material respects, our results for the periods presented. These condensed consolidated financial statements have been prepared by us pursuant to the rules and regulations of the SEC. Certain information and footnote
disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or omitted pursuant to such rules and regulations. These condensed consolidated
financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in Item 8 of our 2007 Annual Report on Form 10-K filed with the SEC on February 19, 2008. The results of
operations for the three months ended March 31, 2008 are not necessarily indicative of results to be expected for the entire fiscal year.

Our unaudited condensed consolidated balance sheet as of December 31, 2007 has been derived from the audited consolidated balance sheet as of that date.

Use of EstimatesThe preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires the
Companys management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues
and expenses during the reporting period. Some of these estimates require difficult, subjective or complex judgments about matters that are inherently uncertain. Actual results could differ from those estimates.

On an ongoing basis, the Company evaluates its estimates, including those related to the accounts receivable allowance, fair value of acquired intangible
assets and goodwill, useful lives of intangible assets and property and equipment, income taxes, the loss contingency for medical liability claims, reserves for incurred but not reported (IBNR) medical liability claims and estimates used
for the purpose of determining stock-based compensation.

Trade Accounts ReceivableTrade accounts receivable represent
receivables for services and are recorded at the invoiced amount and are non-interest bearing. The Company has a history of minimal uncollectible receivables. Company management reviews past due accounts receivable to identify specific customers
with known disputes or collectibility issues. As of March 31, 2008 and December 31, 2007, the Company had reserved $0.6 million for doubtful accounts based on its estimate of the collectibility of outstanding receivables as of those dates.

Marketable SecuritiesThe Company determines the appropriate classification of investments in marketable securities at
the time of purchase and reevaluates such designation at each balance sheet date. Marketable securities have been classified and accounted for as available for sale. The Company may or may not hold securities with stated maturities greater than
twelve months until maturity. In response to changes in the availability of and the yield on alternative investments as well as liquidity requirements, the Company occasionally sells these securities prior to their stated maturities. The Company
expects that the majority of marketable securities will be sold within one year, regardless of maturity date. The Company primarily invests in high-credit-quality debt instruments with an active resale market and money market funds to ensure
liquidity and the ability to readily convert these investments into cash to fund current operations, or satisfy other cash requirements as needed. Accordingly, all marketable securities have been classified as current assets in the accompanying
balance sheets. These securities are carried at fair value, with the unrealized gains and losses, net of taxes, reported as a component of stockholders equity, except for unrealized losses determined to be other than temporary which would be
recorded as other income or expense. Any realized gains or losses on the sale of marketable securities are determined on a specific identification method, and such gains and losses are reflected as a component of other income or expense.

Property and Equipment Property and equipment are stated at cost. Depreciation is provided using the straight-line method over the
estimated useful lives of each asset, which ranges as follows:



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|                                                                  |  |                                                 
|----------------------------------------------------------------- |  | ------------------------------------------------
|Computers, diagnostic workstations and telecommunications systems |  | 35 years                                       
|Office furniture and equipment                                    |  | 710 years                                      
|Software                                                          |  | 37 years                                       
|Leasehold improvements                                            |  | Term of lease or assetlife, whichever is shorter

Expenditures for maintenance and repairs are charged to operating expense as incurred and
expenditures for renewals and betterments are capitalized. Upon sale or retirement of depreciable assets, the related cost and accumulated depreciation are removed from the records and any gain or loss is reflected in operating expenses.

Cost of computer software used for internal use is capitalized and accounted for in accordance with Statement of Position 98-1, Accounting for the
Costs of Computer Software Developed or Obtained for Internal Use. Capitalized costs are amortized based on the Companys expected utilization of existing internally developed software.

Depreciation expense for the three months ended March 31, 2008 and 2007 was $0.9 million and $0.5 million, respectively.

Medical Liability Insurance The Company is exposed to various risks of loss related to litigation that may arise related to
malpractice and maintains insurance for medical liabilities in amounts considered adequate by Company management. The Companys claims-made policy provides coverage up to the policy limits for claims filed within the period of the policy term,
subject to deductible requirements. Coverage for affiliated radiologists is initiated when they begin providing services on behalf of the Company.

The Company records reserves for both reported and IBNR amounts. Reported amounts are reserved based upon the Companys best estimate of future probable costs. IBNR amounts are estimated using historical claims information and industry
indices. This reserve is intended to cover potential medical claims that might arise related to past interpretations performed by the Companys affiliated radiologists.

Concentration of Credit RiskFinancial instruments that potentially expose the Company to concentration of credit risk consist
primarily of cash and cash equivalents and accounts receivable. The Company maintains its cash and cash equivalents with high quality credit institutions. At times, such amounts may be in excess of insured amounts. As of March 31, 2008 and
December 31, 2007, a total of $16.2 million and $12.0 million, respectively, of cash and cash equivalents exceeded insured amounts.

Recent Accounting Standards In September 2006, the FASB issued SFAS No. 157, Fair Value Measurements (SFAS 157). SFAS 157 defines fair value, establishes a framework for measuring fair value
according to accounting principles generally accepted in the United States of America, and expands disclosure requirements regarding fair value measurements. This statement emphasizes that fair value should be determined based on assumptions market
participants would use to price the asset or liability. The provisions of SFAS No. 157 were effective for fiscal years beginning after November 15, 2007. The Company adopted this new accounting pronouncement as of January 1, 2008 and
the impact of adoption was not significant. See Note 11 for disclosures regarding fair value measurements.

In February 2007, the FASB
issued SFAS No. 159, The Fair Value Option for Financial Assets and Financial Liabilities (SFAS 159) which permits entities to choose to measure many financial instruments and certain other items at fair value that
are not currently required to be measured at fair value. SFAS 159 was effective for the Company on January 1, 2008. The Company has assessed this option and decided against electing the fair value option for any items eligible at
January 1, 2008.

In December 2007, the FASB issued SFAS No. 141(R), Business Combinations(SFAS 141(R)) which
establishes principles and requirements for how an acquirer in a business combination recognizes and measures in its financial statements the identifiable assets acquired, the liabilities assumes, and any controlling interest; recognizes and
measures the goodwill acquired in the business combination or a gain from a bargain purchase; and determines what information to disclose to enable users of the financial statements to evaluate the nature and financial effect of the business
combination. SFAS 141(R) is to be applied prospectively to business combinations for which the acquisition date is on or after an entitys fiscal year that begins after December 15, 2008. SFAS 141(R) will be effective for the Company on
January 1, 2009. The Company is currently evaluating the impact of adopting SFAS 141(R) on its financial position and results of operations.



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In December 2007, the FASB issued SFAS No. 160, Noncontrolling Interests in Consolidated
Financial Statements  an amendment of ARB No. 51(SFAS 160). SFAS 160 requires that all entities in which its parent has a controlling financial interest be consolidated into the parent at 100 percent of fair value and the
parents consolidated net income include amounts attributable to both the parent and noncontrolling interest. SFAS 160 clarifies that non-controlling interests in subsidiaries be presented as equity and any changes to the ownership interest are
considered equity transactions providing the parent maintains its controlling financial interest in the subsidiary. SFAS 160 will be effective for the Company on January 1, 2009. The Company is currently evaluating the impact of adopting SFAS
160 on its financial position and results of operations.

In March 2008, the FASB issued SFAS No. 161, Disclosures about Derivative
Instruments and Hedging Activities (SFAS 161) which amends and expands the disclosure requirements of SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities. The Company is currently evaluating the
impact of adopting SFAS 161 on its financial statements and footnotes.

2. ACQUISITIONS

MIDWEST PHYSICIANS SERVICES, LLC AND EMERGENCY RADIOLOGY SERVICES, LLC.

On July 16, 2007, the Company entered into a Membership Interest Purchase Agreement (the Purchase Agreement) with SPR Holdings II, LLC, (SPR Holdings) a privately held company located in
St. Paul, Minnesota, Midwest Physicians Services, LLC (MPS), and Emergency Radiology Services, LLC (ERS), pursuant to which the Company acquired all of the outstanding equity interests of MPS and ERS from SPR Holdings. MPS
was formed by St. Paul Radiology, P.A. (St. Paul Radiology or SPR) to provide a suite of business process services to support its radiology practice. This suite of business process services includes revenue cycle management,
administrative, information technology and other services critical to the operation of a radiology group. The Company intends to combine these services with its proprietary workflow technology to offer its customers a more complete suite of
professional and business process solutions.

In accordance with the terms of the Purchase Agreement, the Company acquired all of the
outstanding equity interests of MPS and ERS for aggregate consideration of (i) $62.9 million in cash, including certain costs associated with the acquisition totaling $0.5 million and (ii) a warrant that was issued to St. Paul Radiology.
This warrant entitles St. Paul Radiology to purchase 300,000 shares of common stock of the Company at any time after July 16, 2010 and before July 16, 2017 at a price equal to the market price of a share of the Companys common stock
at closing on July 16, 2007, which was $18.75 at close. The fair value of the warrant of $3.3 million was calculated using a Black-Scholes model. $57.5 million of the cash portion of the purchase price was paid to SPR Holdings at closing and
the remaining $5.0 million was placed into an escrow account to serve as a source of funds to satisfy the indemnification obligations of SPR Holdings under the Purchase Agreement.

In connection with the acquisition of MPS and ERS by the Company, MPS entered into a long-term administrative support services agreement with each of St.
Paul Radiology and Midwest Radiology LLC (MWR), an affiliate of St. Paul Radiology and provider of imaging services. Under these long term services agreements, MPS will provide business process services to each of St. Paul Radiology and
MWR in exchange for a percentage of the revenue generated by each of those companies.

Prior to January 1, 2008, the Company
recognized revenue associated with our wholly owned subsidiary ERS on a net basis due to the structure of the services agreement with SPR. As part of our goal to align all of our professional radiology service entities under the same business model,
effective January 1, 2008 the Company amended the services agreement with SPR which resulted in ERS recognizing revenue on a gross basis. This amendment resulted in the addition of $0.8 million in revenue in the three months ended
March 31, 2008.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the date of
acquisition. The preliminary purchase price allocations are based on internal analyses and may be adjusted during the allocation period as defined in SFAS No. 141, Business Combinations (SFAS 141).



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|                      |  |                |       
|--------------------- |  | -------------- | ------
|                      |  | (In thousands)
|Current assets        |  | $              | 809   
|Fixed assets          |  |                | 1,814 
|Intangible assets     |  |                | 57,590
|Goodwill              |  |                | 7,055 
|                      |  |                |       
|Assets acquired       |  |                | 67,268
|                      |  |                |       
|Current liabilities   |  |                | 676   
|Long-term liabilities |  |                | 311   
|                      |  |                |       
|Liabilities assumed   |  |                | 987   
|                      |  |                |       
|Purchase price        |  | $              | 66,281
|                      |  |                |       

The acquisition of MPS and ERS resulted in the assets acquired and liabilities assumed being
recorded based on their estimated fair values on the acquisition date. The goodwill of $7.1 million, representing the excess of the purchase price over the fair value of tangible and identifiable intangible assets acquired and liabilities assumed,
will not be amortized, consistent with the guidance in SFAS No. 142, Goodwill and Other Intangible Assets (SFAS 142). The total goodwill balance is deductible for tax purposes over 15 years. The results of operations of MPS
and ERS have been included in the Companys consolidated statements of operations and cash flows starting on July 17, 2007.

The
determination of the estimated fair value of the intangible assets acquired required the Companys management to make significant estimates and assumptions. These assumptions included future expected cash flows from customer contracts, certain
noncompete agreements and tradenames, and the useful lives of the intangible assets.

The amount allocated to intangible assets was
attributed to the following categories:



|                         |  |                              |        |                      |         
|------------------------ |  | ---------------------------- | ------ | -------------------- | --------
|                         |  | AcquiredValue (In thousands) |        | EstimatedUseful Life
|Customer contracts       |  | $                            | 57,180 |                      | 20 years
|Tradename and trademarks |  |                              | 130    |                      | 5 years 
|Noncompete agreements    |  |                              | 280    |                      | 5 years 
|                         |  |                              |        |                      |         
|                         |  | $                            | 57,590 |                      |         
|                         |  |                              |        |                      |         

All intangible assets are being amortized on a straight-line basis over their expected useful
lives (Note 4).

THE RADLINX GROUP, LTD.

On April 5, 2007, the Company completed the acquisition of all of the outstanding equity interests of The Radlinx Group, Ltd., a privately held radiology services company (Radlinx) for consideration consisting of $53.0
million in cash at closing and an additional $0.4 million paid in the fourth quarter of 2007 as settlement of a contractual working capital adjustment included in the purchase agreement. Initial consideration also included the assumption of $12.6
million in liabilities which were paid in full immediately following the acquisition and $0.3 million of certain costs associated with the acquisition.

Additional cash consideration will be paid as an earnout within 45 days of the one-year anniversary of the closing. This contingent consideration will be equal to 25% of the revenues generated by certain identified
customers during that one-year period. As of March 31, 2008, the Company has recorded a liability of $6.4 million for this contingent consideration.

As a result of a settlement of a medical malpractice claim that originated prior to the Companys acquisition of Radlinx, the previous owners of Radlinx were required to pay an aggregate of $5.3 million as part
of the settlement arrangement. To satisfy their obligation, the previous owners of Radlinx utilized $5.3 million that had been previously held in escrow by the previous owners. The Company also participated in the settlement arrangement; however,
the Companys total payment to the plaintiff as part of the settlement was limited to $0.2 million which was recorded to goodwill.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the date of acquisition. The preliminary purchase price allocations are based on internal analyses and may be adjusted during the
allocation period as defined in SFAS 141.



|                      |  |                |       
|--------------------- |  | -------------- | ------
|                      |  | (In thousands)
|Current assets        |  | $              | 3,572 
|Fixed assets          |  |                | 663   
|Intangible assets     |  |                | 19,400
|Goodwill              |  |                | 42,211
|                      |  |                |       
|Assets acquired       |  |                | 65,846
|                      |  |                |       
|Current liabilities   |  |                | 5,616 
|Long-term liabilities |  |                | 12,671
|                      |  |                |       
|Liabilities assumed   |  |                | 18,287
|                      |  |                |       
|Purchase price        |  | $              | 47,559
|                      |  |                |       



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The acquisition of Radlinx resulted in the assets acquired and liabilities assumed being recorded based
on their estimated fair values on the acquisition date. Goodwill of $42.2 million, representing the excess of the purchase price over the fair value of tangible and identifiable intangible assets acquired and liabilities assumed, will not be
amortized, consistent with the guidance in SFAS 142. The Company estimates that $30.0 million of the goodwill balance is deductible for tax purposes. The results of operations of Radlinx have been included in the Companys consolidated
statements of operations and cash flows starting on April 6, 2007.

The determination of the estimated fair value of the intangible
assets acquired required the Companys management to make significant estimates and assumptions. These assumptions included future expected cash flows from customer contracts, certain noncompete agreements, customer lists, the
Radlinx tradename, and the useful lives of the intangible assets.

The amount allocated to intangible assets was attributed to
the following categories:



|                                 |  |                              |        |                      |         
|-------------------------------- |  | ---------------------------- | ------ | -------------------- | --------
|                                 |  | AcquiredValue (In thousands) |        | EstimatedUseful Life
|Customer lists and relationships |  | $                            | 16,800 |                      | 10 years
|Tradename and trademarks         |  |                              | 1,500  |                      | 5 years 
|Noncompete agreements            |  |                              | 1,100  |                      | 2 years 
|                                 |  |                              |        |                      |         
|                                 |  | $                            | 19,400 |                      |         
|                                 |  |                              |        |                      |         

All intangible assets are being amortized on a straight-line basis over their expected useful
lives (Note 4).

TELERADIOLOGY DIAGNOSTIC SERVICE, INC.

On February 9, 2007, the Company entered into a Share Purchase Agreement with Teleradiology Diagnostic Service, Inc. (TDS), each of the shareholders of TDS and certain other related parties, pursuant
to which the Company acquired all of the outstanding stock of TDS. The execution of the Share Purchase Agreement and the closing of the transaction occurred simultaneously. Under the terms of the Share Purchase Agreement, the Company acquired all of
the outstanding stock of TDS, a privately held company, for an aggregate cash consideration of $23.8 million in cash, including certain costs associated with the acquisition and $1.2 million to be paid out at the conclusion of the eighteen month
escrow period.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the date of
acquisition. The following table presents the allocation of the purchase price to the acquired assets and liabilities:



|                      |  |                |       
|--------------------- |  | -------------- | ------
|                      |  | (In thousands)
|Current assets        |  | $              | 1,506 
|Fixed assets          |  |                | 197   
|Intangible assets     |  |                | 12,250
|Goodwill              |  |                | 16,078
|                      |  |                |       
|Assets acquired       |  |                | 30,031
|                      |  |                |       
|Current liabilities   |  |                | 1,394 
|Long-term liabilities |  |                | 4,816 
|                      |  |                |       
|Liabilities assumed   |  |                | 6,210 
|                      |  |                |       
|Purchase price        |  | $              | 23,821
|                      |  |                |       



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The acquisition of TDS resulted in the assets acquired and liabilities assumed being recorded based on
their estimated fair values on the acquisition date. Goodwill of $16.1 million, representing the excess of the purchase price over the fair value of tangible and identifiable intangible assets acquired and liabilities assumed, will not be amortized,
consistent with the guidance in SFAS 142. None of the goodwill balance is deductible for tax purposes. The results of operations of TDS have been included in the Companys consolidated statements of operations and cash flows starting on
February 9, 2007.

The determination of the estimated fair value of the intangible assets acquired required the Companys
management to make significant estimates and assumptions. These assumptions included future expected cash flows from customer contracts, certain noncompete agreements, customer lists, the TDS tradename, and the useful lives of the
intangible assets.

The amount allocated to intangible assets was attributed to the following categories:



|                                 |  |                              |        |                      |         
|-------------------------------- |  | ---------------------------- | ------ | -------------------- | --------
|                                 |  | AcquiredValue (In thousands) |        | EstimatedUseful Life
|Customer lists and relationships |  |                              | 11,350 |                      | 10 years
|Tradename and trademarks         |  |                              | 400    |                      | 5 years 
|Noncompete agreements            |  | $                            | 500    |                      | 3 years 
|                                 |  |                              |        |                      |         
|                                 |  | $                            | 12,250 |                      |         
|                                 |  |                              |        |                      |         

All intangible assets are being amortized on a straight-line basis over their expected useful
lives (Note 4).

AMERICAN TELERADIOLOGY NIGHTHAWKS, INC.

On September 30, 2005, the Company acquired American Teleradiology Nighthawks, Inc. (ATN). The acquisition of ATN was considered by the Company as an acquisition of two distinct businesses (i) an
off-hours teleradiology business that was supplemental to the Companys off-hours business, and (ii) a nascent hospital business that focused on partnering with radiologists in order to supplement the services they provide to their
hospitals. The consideration that was possibly to be paid to the ATN stockholders in connection with the acquisition was based exclusively upon the future financial performance of these two businesses. Specifically, the consideration to the
stockholders of ATN was to be calculated as follows:



| |  |  | Up-Front Payment: 315,279 shares of common stock were issued on September 30, 2005,
| | - |  | -----------------------------------------------------------------------------------



| |  |  | Off-Hours Earnout: 181,971 shares of common stock were issued on March 4, 2008 as consideration to stockholders of ATN as of the acquisition date. The
additional consideration was calculated in accordance with the provisions of the purchase agreement,
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Hospital Earnout: If the hospital business proved to be profitable in the 18 months following the acquisition, additional shares of common stock were to be
issued in an amount equal to the sum of (a) the quotient obtained by dividing (i) earnings before interest, taxes, depreciation and amortization, or EBITDA, generated by the hospital business during the twelve month period ending
March 31, 2007 by (ii) $12.69, which was the value per share of common stock on the date of completion of the acquisition (as agreed by the parties), plus (b) the quotient obtained by dividing (A) three times (3x) the EBITDA
amount described in clause (i) by (B) the fair market value of our common stock, determined on a per share basis, on March 31, 2007. During the quarter ended March 31, 2007, the Company determined that the hospital business did
not generate any EBITDA and, thus, that no amount was earned for the second component of the contingent consideration. This contingent consideration amount is currently subject to dispute and is being negotiated between the former stockholders of
ATN and Company management. Although the Company does not believe that additional shares will be issued, the contingent consideration components ultimately due is subject to resolution of this dispute and agreement by the parties.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The shares of common stock that were issued were recorded at par value as common stock with additional amounts up to
fair value recorded as Additional Paid-In Capital. The shares, if any, that may be issued as a result of negotiation between the parties, will be recorded in a similar manner upon resolution.

The following table presents the allocation of the purchase price to the acquired assets and liabilities:



|                              |  |                |      
|----------------------------- |  | -------------- | -----
|                              |  | (In thousands)
|Current assets                |  | $              | 1,371
|Furniture and fixtures        |  |                | 187  
|Intangible assets             |  |                | 2,680
|Goodwill                      |  |                | 2,631
|                              |  |                |      
|Assets acquired               |  |                | 6,869
|                              |  |                |      
|Current liabilities assumed   |  |                | 1,096
|Long-term liabilities assumed |  |                | 1,261
|                              |  |                |      
|Liabilities assumed           |  |                | 2,357
|                              |  |                |      
|Net assets acquired           |  | $              | 4,512
|                              |  |                |      



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3. MARKETABLE SECURITIES

Marketable securities include various available-for-sale securities. These securities are carried at fair value, with the unrealized gains and losses, net of taxes, reported as a component of stockholders
equity. Gross unrealized gains and losses on marketable securities were not significant at March 31, 2008 and December 31, 2007.

Below are the Companys marketable securities at fair value:



|                                              |  |                |        |                  |   |       
|--------------------------------------------- |  | -------------- | ------ | ---------------- | - | ------
|                                              |  | March 31,2008  |        | December 31,2007
|                                              |  | (In thousands)
|Due in one year or less:                      |  |                |        |                  |   |       
|U.S. Government and Federal Agency Securities |  | $              | 8,979  |                  | $ | 13,430
|Municipal Securities                          |  |                | 24,237 |                  |   | 17,195
|                                              |  |                |        |                  |   |       
|Total Marketable Securities                   |  | $              | 33,216 |                  | $ | 30,625
|                                              |  |                |        |                  |   |       

4. INTANGIBLE ASSETS

A summary of intangible assets is as follows:



|                                 |  |                      |  |                  |        |                         |   |                  |  |                         |        |  |   |      
|-------------------------------- |  | -------------------- |  | ---------------- | ------ | ----------------------- | - | ---------------- |  | ----------------------- | ------ |  | - | -----
|                                 |  |                      |  | March 31, 2008   |        | December 31, 2007      
|                                 |  |                      |  | (In thousands)  
|                                 |  | EstimatedUseful Life |  | HistoricalAmount |        | AccumulatedAmortization |   | HistoricalAmount |  | AccumulatedAmortization
|Amortized intangible assets:     |  |                      |  |                  |        |                         |   |                  |  |                         |        |  |   |      
|Customer lists and relationships |  | 6-10 years           |  | $                | 30,770 |                         | $ | 3,959            |  | $                       | 30,770 |  | $ | 3,156
|Tradename and trademarks         |  | 5 years              |  |                  | 2,820  |                         |   | 669              |  |                         | 2,820  |  |   | 510  
|Customer contracts               |  | 1-20 years           |  |                  | 57,280 |                         |   | 2,125            |  |                         | 57,280 |  |   | 1,410
|Noncompete agreements            |  | 2-5 years            |  |                  | 2,090  |                         |   | 957              |  |                         | 2,090  |  |   | 751  
|                                 |  |                      |  |                  |        |                         |   |                  |  |                         |        |  |   |      
|                                 |  |                      |  | $                | 92,960 |                         | $ | 7,710            |  | $                       | 92,960 |  | $ | 5,827
|                                 |  |                      |  |                  |        |                         |   |                  |  |                         |        |  |   |      

Amortization expense was $1.9 million and $0.3 million for the three months ended March 31,
2008 and 2007, respectively.



|                                     |  |                      |       
|------------------------------------ |  | -------------------- | ------
|Estimated Amortization Expense:      |  | Amount(In thousands)
|Nine months ending December 31, 2008 |  | $                    | 5,634 
|Year ending December 31, 2009        |  |                      | 7,064 
|Year ending December 31, 2010        |  |                      | 6,687 
|Year ending December 31, 2011        |  |                      | 6,452 
|Year ending December 31, 2012        |  |                      | 5,879 
|Thereafter                           |  |                      | 53,534
|                                     |  |                      |       
|Total                                |  | $                    | 85,250
|                                     |  |                      |       



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5. LONG-TERM DEBT

On April 5, 2007, the Company entered into a credit agreement with Morgan Stanley Senior Funding (Credit Agreement) relating to a term loan in an amount of $53.0 million, with an option for the
Company to request that the lenders advance up to an additional $97.0 million in term loans for a total credit facility of up to $150.0 million (Credit Facility). The Company used proceeds from the Credit Facility to fund the acquisition
of Radlinx. Interest under the Credit Facility was based on either: (i) a floating per annum rate based on the Administrative Agents prime rate plus a margin of 1.25% or (ii) upon syndication, and at the option of the Company, a
floating per annum rate (based upon one, two, three or six-month interest periods) based on LIBOR plus a margin of 2.25%. The Credit Facility was guaranteed by substantially all of the Companys assets as collateral for the amounts borrowed by
the Company and contains normal restrictive covenants.

On July 10, 2007, the Company entered into the Amended and Restated Credit
Agreement (the Amended Credit Facility) with Morgan Stanley which amended and replaced the Credit Agreement. The Amended Credit Facility provides for term loans up to $150.0 million in aggregate. Further, under the Amended Credit
Facility, the Company may request that the lenders advance up to an additional $75.0 million in term loans, although this additional amount and the terms under which such loans would be made have not been committed. Under the Amended Credit
Facility, the Company increased its borrowings to $100.0 million and used the additional proceeds for the MPS and ERS acquisitions and to pay the fees and expenses incurred in connection with the Amended Credit Facility. The additional funds
available under the Amended Credit Facility may be used by the Company for financing certain acquisitions and for general corporate purposes. Interest under the Amended Credit Facility is based, at the option of the Company, on either: (i) a
floating per annum rate based on the Administrative Agents prime rate plus a margin of 1.50% or (ii) a floating per annum rate (based upon one, two, three or six-month interest periods) based on LIBOR plus a margin of 2.50% (7.33% at
December 31, 2007). The Company also entered into two interest rate swap contracts during 2007 which, while in place will maintain an effective rate of approximately 7.40%. See additional discussion of the interest rate swap contracts in Note
10.

The term loan will be repaid in quarterly installments, with principal being amortized at an annual rate of 1.00%, and the balance
payable on the maturity date of July 10, 2014. The term loan is subject to mandatory prepayment under certain circumstances, including in connection with the Companys receipt of proceeds from certain issuances of equity or debt, sales of
assets and casualty events and beginning eighteen months from closing, from the Companys excess cash flow. The term loan may be voluntarily prepaid without premium or penalty.

The Amended Credit Facility contains customary affirmative, negative and financial covenants, including, among other requirements, negative covenants
that restrict the Companys ability to create liens, enter into mergers and acquisitions, pay dividends, repurchase stock, incur indebtedness, make investments and make capital expenditures, and financial covenants that establish applicable
interest coverage ratios and limit the maximum leverage the Company can maintain at any one time.

The Amended Credit Facility contains
events of default that include, among others, non-payment of principal, interest or fees, inaccuracy of representations and warranties, violation of covenants, cross defaults to certain other indebtedness, bankruptcy and insolvency events, material
judgments, and events constituting a change of control. The occurrence of an event of default could result in an increased interest rate, the acceleration of the Companys obligations under the Amended Credit Facility and an obligation of the
Company or any guarantor to repay the full amount of the Companys borrowings under the Amended Credit Facility.

6. COMMITMENTS AND
CONTINGENCIES

Letters of CreditThe Companys Sydney and San Francisco office leases and the Companys
malpractice insurance are collateralized by separate letters of credit in the amounts of $0.2 million, $0.1 million and $0.4 million, respectively, as of March 31, 2008 and December 31, 2007.

LitigationThe Company is involved in litigation in the normal course of business. After consultation with legal counsel, Company
management estimates that at March 31, 2008 these matters are expected to be resolved without material adverse effect on the Companys financial position, results of operations, or cash flows.

Medical Liability Insurance The Company is exposed to various risks of loss related to litigation that may arise related to
malpractice and maintains insurance for medical liabilities in amounts considered adequate by Company management. The Companys claims-made policy provides coverage up to the policy limits for claims filed within the period of the policy term,
subject to deductible requirements. Coverage for affiliated radiologists is initiated when they begin providing services to the Company.



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##### Table of Contents

The Company records reserves for both reported and IBNR amounts. Reported amounts are reserved based upon
the Companys best estimate of future probable costs and totaled $0.5 million at March 31, 2008 and December 31, 2007. During the three months ended March 31, 2008, the Company recorded $0.9 million of expense for estimated IBNR
amounts. The increase in the current period is primarily due to the utilization of an indemnification clause related to the acquisition of Radlinx. As a result, the Company recorded $0.5 million of additional costs in the period ended March 31,
2008.

7. STOCK COMPENSATION PLANS

Share Based Award Plans.The Company has two stock-based award plans, the 2004 Stock Plan (the 2004 Plan) and the 2006 Equity Incentive Plan (the 2006 Plan). In February 2006, all shares available for
grant under the 2004 Plan were rolled over and became available for grant under the 2006 Plan. As of March 31, 2008, the Company had an aggregate of 4,511,557 shares of its common stock reserved for issuance under the 2004 Plan and 2006 Plan,
of which 563,608 shares were available for future grants and 3,947,949 shares were subject to outstanding stock awards.

The Companys
Board of Directors administers the plans and establishes to whom the awards are granted, and the terms and conditions, including the exercise period, of such awards. All stock options granted have an exercise price equal to or greater than the
fair value of the Companys common stock on the date the option is granted. All restricted stock units (RSUs) granted are granted with an exercise price of zero. Both stock options and RSUs granted generally have contractual
terms of ten years and vest over three years. Options and RSUs granted to employees and directors are valued using the multiple valuation approach, and the resulting expense is recognized using the accelerated method over the service period for the
entire award.

Stock Options.The Company granted stock options covering 253,000 shares during the three months ended March 31,
2008 at a weighted-average exercise price of $12.23. The weighted-average grant-date fair value per share granted during the three months ended March 31, 2008 was $4.61. A summary of stock-based award activity for employees and non-employees
under the 2004 Plan and 2006 Plan are as follows:



|                                                 |  |                        |   |  |                               |       |                                                 |      |                                        |   |      
|------------------------------------------------ |  | ---------------------- | - |  | ----------------------------- | ----- | ----------------------------------------------- | ---- | -------------------------------------- | - | -----
|Stock Options                                    |  | Number ofStock Options |   |  | WeightedAverage ExercisePrice |       | Weighted AverageRemainingContractual Life (Yrs) |      | AggregateIntrinsic Value(in thousands)
|Outstanding as of January 1, 2008                |  | 3,497,210              |   |  | $                             | 14.85 |                                                 |      |                                        |   |      
|Granted                                          |  | 253,000                |   |  |                               | 12.23 |                                                 |      |                                        |   |      
|Exercised                                        |  | (134,630               | ) |  |                               | 2.50  |                                                 |      |                                        |   |      
|Cancelled                                        |  | (189,435               | ) |  |                               | 19.97 |                                                 |      |                                        |   |      
|                                                 |  |                        |   |  |                               |       |                                                 |      |                                        |   |      
|Outstanding as of March 31, 2008                 |  | 3,426,145              |   |  | $                             | 14.86 |                                                 | 7.86 |                                        | $ | 5,849
|                                                 |  |                        |   |  |                               |       |                                                 |      |                                        |   |      
|Exercisable as of March 31, 2008                 |  | 1,196,483              |   |  | $                             | 11.34 |                                                 | 6.05 |                                        | $ | 4,294
|Vested and expected to vest as of March 31, 2008 |  | 3,315,560              |   |  | $                             | 14.78 |                                                 | 7.82 |                                        | $ | 5,808

Restricted Stock Units.During the three months ended March 31,
2008, the Company granted 372,671 restricted stock unit awards at a fair value of $12.23 per share. Activity related to these restricted stock unit awards is as follows:



|                                                 |  |                 |   |  |                                                 |  |                                        |      
|------------------------------------------------ |  | --------------- | - |  | ----------------------------------------------- |  | -------------------------------------- | -----
|Restricted Stock Unit Awards                     |  | Number ofAwards |   |  | Weighted AverageRemainingContractual Life (Yrs) |  | AggregateIntrinsic Value(in
thousands)
|Outstanding as of January 1, 2008                |  | 254,574         |   |  |                                                 |  |                                        |      
|Granted                                          |  | 372,671         |   |  |                                                 |  |                                        |      
|Released                                         |  | (96,559         | ) |  |                                                 |  |                                        |      
|Cancelled                                        |  | (8,882          | ) |  |                                                 |  |                                        |      
|                                                 |  |                 |   |  |                                                 |  |                                        |      
|Outstanding as of March 31, 2008                 |  | 521,804         |   |  | 2.06                                            |  | $                                      | 4,884
|                                                 |  |                 |   |  |                                                 |  |                                        |      
|Vested and expected to vest as of March 31, 2008 |  | 470,569         |   |  | 2.02                                            |  | $                                      | 4,405



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##### Table of Contents

Intrinsic value represents the amount by which the fair market value of the underlying stock exceeds the
exercise price of the options. For all RSU awards, the exercise price is zero.

Recognition of Compensation Expense. As of
March 31, 2008, the total remaining unrecognized compensation cost related to unvested stock-based employee/director arrangements, net of an estimated forfeiture rate of 8.9%, was $8.4 million and is expected to be recognized over a weighted
average period of 1.13 years.

The Company measures the compensation cost associated with stock-based payments by estimating the fair value
of stock options as of the grant date using the Black-Scholes option pricing model. The Company believes that the valuation technique and the approach utilized to develop the underlying assumptions are appropriate in calculating the fair value of
the stock options granted. Estimates of fair value are not intended to predict actual future events or the value ultimately realized by the employees who receive equity awards.

The weighted average fair values of stock-based arrangements on the date of grant and the assumptions used to estimate the fair value of the stock-based
arrangements were as follows:



|                                                 |  |                                 |   |  |                                 |  
|------------------------------------------------ |  | ------------------------------- | - |  | ------------------------------- | -
|                                                 |  | Three MonthsEnded March 31,2008 |   |  | Three MonthsEnded March 31,2007 |  
|Dividend yield                                   |  |                                |   |  |                                |  
|Expected volatility                              |  | 47                              | % |  | 32                              | %
|Risk-free interest rates                         |  | 2.62                            | % |  | 4.71                            | %
|Expected term for employees (years)              |  | 3.7                             |   |  | 4.0                             |  
|Expected/remaining term for non-employee (years) |  | 10                              |   |  | 10                              |  

Expected volatility is estimated based primarily on evaluating similar companies volatility
rates, due to the Companys limited trading history. The Company started incorporating its trading history into the estimates on January 1, 2007. The risk-free interest rate is based on the U.S. Treasury yields in effect at the time of
grant corresponding with the expected term of the options. The expected option term for employees is the number of years estimated that options will be outstanding prior to exercise considering vesting schedules, historical exercise experience and
other relevant factors.

8. COMPUTATION OF EARNINGS PER SHARE

The following table presents a reconciliation of the numerators and denominators used in the basic and diluted earnings per common share computations:



|                                                            |  |                                   |            |                |   |           
|----------------------------------------------------------- |  | --------------------------------- | ---------- | -------------- | - | ----------
|                                                            |  | Three Months Ended               
|                                                            |  | March 31, 2008                    |            | March 31, 2007
|                                                            |  | (in thousands, except share data)
|Numerator:                                                  |  |                                   |            |                |   |           
|Net income available in basic calculation                   |  | $                                 | 731        |                | $ | 4,332     
|                                                            |  |                                   |            |                |   |           
|Denominator:                                                |  |                                   |            |                |   |           
|Weighted average common shares outstanding-basic            |  |                                   | 30,444,195 |                |   | 29,960,256
|Effect of dilutive stock options and restricted stock units |  |                                   | 854,742    |                |   | 737,937   
|Effect of contingently issuable shares                      |  |                                   | 125,426    |                |   | 183,535   
|                                                            |  |                                   |            |                |   |           
|Weighted average common shares outstanding-dilutive         |  |                                   | 31,424,363 |                |   | 30,881,728
|                                                            |  |                                   |            |                |   |           
|Earnings per common sharebasic                             |  | $                                 | 0.02       |                | $ | 0.14      
|Earnings per common sharediluted                           |  | $                                 | 0.02       |                | $ | 0.14      
|                                                            |  |                                   |            |                |   |           
|Anti-dilutive shares excluded from calculation              |  |                                   | 2,653,840  |                |   | 589,794   
|                                                            |  |                                   |            |                |   |           



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9. INCOME TAXES

In accordance with interim reporting requirements, the Company uses an estimated annual effective tax rate for computing its provision for income taxes. The effective rate for the three months ended March 31,
2008 and 2007 were 40.1% and 38.8%, respectively. The increase in effective rate is primarily due to a decrease in book income compared to the prior period. The Companys permanent tax differences did not change significantly from the prior
period leading to the increase in the effective rate.

The Company recognizes income taxes under the asset and liability method in
accordance with SFAS No. 109, Accounting for Income Taxes (SFAS 109). This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the
carrying amounts and the tax bases of assets and liabilities.

The provision for income taxes, including the effective tax rate and
analysis of potential tax exposure items, if any, requires significant judgment and expertise in federal and state income tax laws, regulations and strategies, including the determination of deferred tax assets and liabilities and any estimated
valuation allowances deemed necessary to value deferred tax assets. The Companys judgment and tax strategies are subject to audit by various taxing authorities. While the Company believes it has provided adequately for its income tax
liabilities in the consolidated financial statements, adverse determinations by these taxing authorities could have a material adverse effect on the consolidated financial condition, results of operations or cash flows.

In July 2006, the Financial Accounting Standards Board (FASB) issued FASB Interpretation No. 48, Accounting for Uncertainty in Income
Taxesan interpretation of FASB Statement No. 109 (FIN 48), which clarifies the accounting for uncertainty in tax positions. FIN 48 requires that the impact of a tax position be recognized in the financial statements if
that position is more likely than not of being sustained on audit, based on the technical merits of the position. The Company adopted the provisions of FIN 48 on January 1, 2007. As a result, the Company recorded $660,800 of unrecognized
tax benefits. Final recognition of those benefits would result in corresponding unrecognized tax obligations of $601,100. Accordingly, the net impact on retained earnings for the cumulative effect of adopting FIN 48 was $59,700. All of the
unrecognized tax benefits would affect the Companys effective tax rate if recognized.

There was no change in the balance of net
unrecognized tax benefits for the three months ended March 31, 2008. All of the unrecognized tax benefits would affect the Companys effective tax rate if recognized. The Company does not anticipate a material change to the total amount of
unrecognized tax benefits within the next twelve months.

Interest and penalties related to income tax liabilities are included in Other
Expense. As a result of the implementation of FIN 48, the Company recorded a cumulative effect adjustment to retained earnings of $6,700 for accrued interest and $68,200 for penalties on unrecognized tax benefits. During the three months
ended March 31, 2008, the Company recorded $1,700 of additional interest and $2,500 of additional penalties on unrecognized tax benefits.

10.
DERIVATIVE FINANCIAL INSTRUMENTS

The Company recognizes all derivatives on the condensed consolidated balance sheet at fair value. The
Company designates at inception whether the derivative contract is considered hedging or non-hedging in accordance with SFAS 133. During 2007, the Company entered into two interest rate swap contracts with a combined notional amount of $100.0
million in connection with its outstanding debt. The contracts expire on September 30, 2009 and 2010, respectively. These contracts, while in effect, will maintain an effective interest rate of approximately 7.40%. The contracts were initiated
to maintain compliance with debt requirements and to protect the Company against changes in the interest payments associated with its variable-rate long-term debt, and therefore are considered cash flow hedges. As a result, as long as the swap is
deemed highly effective, changes in the fair value of the swaps are recorded as either an asset (a gain position), or a liability (a loss position) on the balance sheet, with the offset recorded in accumulated other comprehensive income, a separate
component of shareholders equity. At March 31, 2008 and December 31, 2007, the fair value of the interest rate swap contracts resulted in net unrealized losses of $5.4 million and $2.7 million, respectively. For the quarter ended
March 31, 2008, the amount of hedge ineffectiveness was immaterial.



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11. FAIR VALUE MEASUREMENTS

SFAS 157 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an
orderly transaction between market participants on the measurement date. SFAS 157 also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring
fair value. The standard describes three levels of inputs that may be used to measure fair value:

Level 1Quoted prices in
active markets for identical assets or liabilities.

Level 2Observable inputs other than Level 1 prices such as quoted prices
for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or
liabilities.

The Company has determined that its marketable securities and interest rate swaps are Level 2 in the fair value hierarchy
discussed above. The Companys marketable securities are valued using inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. As discussed in Note 5 above, the
Companys interest rate swap is based on a LIBOR rate. Fair value for the interest rate swap is based on a model-derived valuation using the LIBOR rate, which is observable at commonly quoted intervals for the full term of the swap. The Company
does not have any financial assets or liabilities measured under Level 1 or Level 3 of the fair value hierarchy.

The following table sets
forth the fair value of Companys financial assets and liabilities as measured using Level 2 inputs on a recurring basis as of March 31, 2008:



|                            |  |                |       
|--------------------------- |  | -------------- | ------
|                            |  | (In thousands)
|Assets                      |  |                |       
|Marketable securities       |  | $              | 33,216
|Liabilities                 |  |                |       
|Interest rate swap contract |  | $              | 5,395 

12. SUBSEQUENT EVENT

On May 7, 2008, the Company announced that it expects to commence a Dutch Auction tender offer to purchase such number of shares of its common stock that does not exceed an aggregate purchase price of
$50.0 million. Under terms of the tender offer, the Company will invite stockholders to tender their shares at prices specified by the tendering stockholders within a range to be specified in the proposed offer to purchase. Upon receipt of the
tenders, the Company will then select the lowest single per-share purchase price that will allow it to buy up to $50.0 million of its outstanding common stock, as soon as practicable.



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##### Table of Contents

|ITEM 2. | MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
|------- | -------------------------------------------------------------------------------------

Cautionary Statement for Purposes of Safe Harbor Provisions of the Private Securities Litigation Reform Act of 1995

THIS QUARTERLY REPORT CONTAINS FORWARD-LOOKING STATEMENTS THAT INVOLVE RISKS AND UNCERTAINTIES. THE STATEMENTS CONTAINED IN THIS QUARTERLY REPORT THAT ARE NOT PURELY HISTORICAL ARE FORWARD-LOOKING STATEMENTS WITHIN
THE MEANING OF SECTION 27A OF THE SECURITIES ACT OF 1933, AS AMENDED, AND SECTION 21E OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED. THESE FORWARD-LOOKING STATEMENTS INCLUDE, WITHOUT LIMITATION, STATEMENTS RELATING TO FUTURE ECONOMIC
CONDITIONS IN GENERAL AND STATEMENTS ABOUT OUR FUTURE:



| |  |  | STRATEGY AND BUSINESS PROSPECTS;
| | - |  | --------------------------------



| |  |  | DEVELOPMENT AND EXPANSION OF SERVICES, AND THE SIZE, GROWTH, AND LEADERSHIP OF THE POTENTIAL MARKETS FOR THESE SERVICES;
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | DEVELOPMENT OF NEW CUSTOMER RELATIONSHIPS AND PRODUCTS;
| | - |  | -------------------------------------------------------



| |  |  | SALES, EARNINGS, INCOME, EXPENSES, OPERATING RESULTS, TAX RATES, OPERATING AND GROSS PROFIT AND PROFIT MARGINS, VALUATIONS, RECEIVABLES, RESERVES, LIQUIDITY,
INVESTMENT INCOME, CURRENCY RATES, STOCK OPTION EXERCISES, CAPITAL RESOURCE NEEDS, CUSTOMERS, AND COMPETITION;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | ABILITY TO OBTAIN AND PROTECT OUR INTELLECTUAL PROPERTY AND PROPRIETARY RIGHTS; AND
| | - |  | -----------------------------------------------------------------------------------



| |  |  | ACQUISITIONS AND TRANSACTION COSTS AND ADJUSTMENTS.
| | - |  | ---------------------------------------------------

ALL OF THESE FORWARD-LOOKING STATEMENTS ARE BASED ON INFORMATION AVAILABLE TO US ON THE DATE OF THIS QUARTERLY REPORT. OUR ACTUAL RESULTS COULD DIFFER MATERIALLY FROM THOSE DISCUSSED IN THIS QUARTERLY REPORT. THE
FORWARD-LOOKING STATEMENTS CONTAINED IN THIS QUARTERLY REPORT, AND OTHER WRITTEN AND ORAL FORWARD-LOOKING STATEMENTS MADE BY US FROM TIME TO TIME, ARE SUBJECT TO CERTAIN RISKS AND UNCERTAINTIES THAT COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY
FROM THOSE ANTICIPATED IN THE FORWARD-LOOKING STATEMENTS. FACTORS THAT MIGHT CAUSE SUCH A DIFFERENCE INCLUDE, BUT ARE NOT LIMITED TO, THOSE DISCUSSED IN ITEM 1A OF THIS REPORT ENTITLED RISK FACTORS.

Overview

NightHawk Radiology Holdings, Inc. is
leading the transformation of the practice of radiology by providing high-quality, cost-effective services to radiology groups and hospitals throughout the United States. We provide the most complete suite of solutions, including professional
services, business services, and our advanced, proprietary clinical workflow technology, all designed to increase efficiencies and improve the quality of patient care and the lives of physicians who provide it. Our team of physicians, located
primarily in the United States, Australia, and Switzerland, provide services 24 hours a day, seven days a week, for more than 780 customers covering approximately 26% of all U.S. hospitals. For more information, visit www.nighthawkrad.net.

Our team of American Board of Radiology-certified, U.S. state-licensed and hospital-privileged affiliated radiologists uses our
proprietary workflow technology to provide professional services (interpretations or reads) from locations around the world to our customers in the United States. The reads that they perform consist primarily of off-hours
preliminary reads, but increasingly include final and sub-specialty interpretations and cardiac computed tomography (or CT) reads. In addition to these professional services, we also provide our customers with cardiac 3D reconstructions,
clinical workflow technology, and business services, all designed to enhance the care they provide to patients and improve the efficiency of their practices.



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Recent Acquisitions

In 2007, we expanded our solution suite and customer base through a series of acquisitions and investments:



| |  |  | In February 2007, we acquired Teleradiology Diagnostic Services, Inc. (TDS), a leading provider of off-hours teleradiology services on the West Coast,
providing services to hospitals throughout California, the largest market in the United States,
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In April 2007, we acquired The Radlinx Group, Ltd. (Radlinx), the third largest provider of teleradiology services in the country with affiliated
radiologists located throughout the United States, and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In July 2007, we acquired Midwest Physician Services, LLC (MPS), which provides a complete suite of business process services including revenue cycle
management, human resources services, facilities management, accounting and financial services, transcription services, records management, operational support and quality assurance program support.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Critical Accounting Policies

The preparation of
financial statements in accordance with GAAP requires our management to select and apply accounting policies that best provide the framework to report the results of operations and financial position for the Company. The selection and application of
those policies requires management to make difficult, subjective and/or complex judgments concerning reported amounts of revenue and expenses during the reporting period and the reported amounts of assets and liabilities at the date of the financial
statements. As a result, there exists the likelihood that materially different amounts would be reported under different conditions or using different assumptions.

As of March 31, 2008, there have been no significant changes with regard to the critical accounting policies disclosed in our Annual Report on Form 10-K for the year ended December 31, 2007. The policies
disclosed included the accounting for revenue recognition and allowance for doubtful accounts, stock-based compensation, use of estimates, purchase accounting and long-lived assets including goodwill and other acquired intangible assets, income
taxes, and derivative accounting.

How We Generate Revenue

Historically, we have generated substantially all of our revenue from the professional radiology services that we provide our customers. We typically provide these services pursuant to one-year service contracts that
automatically renew for each successive year unless terminated by the customer or by us. The amount we charge for our radiology services varies by customer based upon a number of factors, including the hours of coverage we provide for the customer,
the number of interpretations we perform for the customer and the technical and administrative services we provide to the customer.

More
recently, through our acquisition of MPS in July 2007, we have expanded our service offerings for radiology groups to include business services such as revenue cycle management, human resources services, facilities management, accounting and
financial services, transcription services, records management, operational support, and quality assurance program support.

We also
license the use of our proprietary clinical workflow technology to customers which includes both hosted applications and related services such as implementation setup, training, report customization and monitoring.

We recognize revenue generated by our professional and business services during the month in which services are provided and we bill our customers at the
beginning of the following month. Because the invoices are typically paid directly by our customers, we do not currently depend upon any material payments by third-party payors or patients. Our business services revenue is based on a contractual
agreement that is driven by the amount of services we provide and the amount business our customers provide.

Since our first full year of
operations, we have experienced significant revenue growth, from $4.7 million in 2002 to $151.7 million in 2007. This growth in revenue resulted primarily from:



| |  |  | an increase in our customer base,
| | - |  | ---------------------------------



| |  |  | an increase in utilization of our services by our customers,
| | - |  | ------------------------------------------------------------



| |  |  | acquisitions,
| | - |  | -------------



| |  |  | an expansion of services offered,
| | - |  | ---------------------------------



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| |  |  | an expansion of our service hours,
| | - |  | ----------------------------------



| |  |  | a high customer retention rate, and
| | - |  | -----------------------------------



| |  |  | growth in the use of diagnostic imaging technologies and procedures in the healthcare industry.
| | - |  | -----------------------------------------------------------------------------------------------

For the three months ended March 31, 2008, our exam volumes reached more than 745,000 and our affiliated radiologists provided services to more than
780 customers serving more than 1,500 hospitals. The total number of hospitals we cover represents approximately 26% of all hospitals in the United States.

Most of our current customers contract with us for a limited set of professional services. There is significant opportunity among our customer base to cross-sell our services  to expand the types of
professional services we provide to customers and also to begin providing clinical workflow technology and business services to those customers.

Our
Operating Expenses

Our operating expenses consist primarily of professional services expense, sales, general and administrative
expense, interest expense and income tax expense. We record stock compensation expense in connection with equity issuances to our affiliated radiologists (which we refer to as physician stock-based compensation) and in connection with equity
issuances to our employees and directors (which we refer to as non-physician stock-based compensation). In our consolidated statements of operations, we present our physician stock-based compensation expense as part of our professional services
expenses and our non-physician stock-based compensation as part of our sales, general and administrative expense.

Professional Services
Expense.Professional service expenses consist primarily of the fees we pay to affiliated radiologists, any physician stock-based compensation, the premiums for medical liability insurance, and any medical liability claims loss expenses.
Affiliated radiologists are independent contractors compensated using a formula that is generally based upon the number of hours worked, with additional incentives for the workload completed as well as year-end discretionary bonuses. Professional
services expenses are recognized in the month in which the services are performed.

Malpractice Expense.We recognize expenses
associated with medical liability premiums in the month in which the expense is incurred. We record reserves for both reported and incurred but not reported (IBNR) amounts. Reported amounts are reserved based upon our best estimate of
future probable costs. IBNR claims are estimated using historical claims lag information received by our third party claims administrator and industry indices. This reserve is intended to cover potential medical claims that might arise related to
all of the radiological interpretations performed by our affiliated radiologists since inception.

Physician Stock-Based Compensation
Expense. As described previously, we record physician stock-based compensation expense in connection with any stock options, restricted stock units or other issuance of shares of our common stock to our affiliated radiologists and present
this expense in our consolidated statements of operations as part of our professional services expense. We calculate the stock-based compensation expense associated with the issuance of stock options and warrants to affiliated radiologists in
accordance with Statement of Financial Accounting Standards ( SFAS) No. 123 (revised 2004) Share Based Payment (SFAS No. 123(R)) and Emerging Issues Task Force (EITF) Issue No. 96-18
Accounting for Equity Instruments That Are issued to Other Than Employees for Acquiring, or in Conjunction with Selling, Goods and Services(EITF No. 96-18).

Sales, General and Administrative Expense. Sales, general and administrative expense consists primarily of salaries and related expenses for
all employees, non-physician stock-based compensation, information technology and telecommunications expenses, costs associated with licensing and privileging our affiliated radiologists, facilities and office-related expenses, sales and marketing
expenses and other general and administrative expenses.

Non-Physician Stock-Based Compensation Expense. As described
previously, we record non-physician stock-based compensation expense in connection with any grant of stock options, restricted stock units, warrants or other issuance of shares of our common stock to our employees and directors and present this
expense in our consolidated statement of operations as part of our sales, general and administrative expense. We calculate the stock-based compensation expense associated with the issuance of stock options and warrants to our employees and directors
in accordance with SFAS No. 123(R).



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Our Non-Operating Expenses

In addition to our operating expenses, we record the following non-operating expenses.

Interest
Expense.The interest expense we incur in a given period is directly attributable to the principal amount of debt we have outstanding during such period.

Income Tax Expense.We recognize income taxes under the asset and liability method. This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of
temporary differences between the carrying amounts and the tax bases of assets and liabilities.

Trends in our Business and Results of Operations

Revenue Trends.Our business has grown rapidly since inception. This growth has been driven by an increase in our customer base, an
increase in utilization of our service by our customers, acquisitions, an expansion of services offered, an expansion of our service hours, a high customer retention rate and the growth in the use of diagnostic imaging technologies and procedures in
the healthcare industry. Our strategy is to expand on our position as the leading provider of radiology services by:



| |  |  | continuing to expand our service offerings in final and sub-specialty interpretations, cardiac imaging services and business process services,
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | expanding our radiology group customers utilization of our services as they implement coverage of additional hospitals,
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | targeting new customers,
| | - |  | ------------------------



| |  |  | pursuing both strategic and tactical acquisitions, and
| | - |  | ------------------------------------------------------



| |  |  | developing markets for our data and technology solutions.
| | - |  | ---------------------------------------------------------

Our revenue has increased in absolute dollars each year since inception and our revenue growth rates have been historically strong. Revenue grew 61% from March 31, 2007 to March 31, 2008 with organic revenue
growth of 15% for the same periods. Our revenue growth rates have declined from the three months ended March 31, 2007 to the three months ended March 31, 2008 when compared with our growth rate from the three months ended March 31,
2006 to the three months ended March 31, 2007. This rate of growth will likely continue to decline as a result of the increased revenue base against which future periods will be compared. In addition, although we expect that a number of our
customers will implement our new service offerings, continue to implement coverage for additional hospitals as well as continue to use additional hours of our service, we also have experienced and expect to continue to experience lost volumes from
certain customers.

Prior to January 1, 2008, we recognized revenue associated with our wholly owned subsidiary Emergency Radiology
Services, LLC (ERS) on a net basis due to the structure of the services agreement with St. Paul Radiology, P.A. (SPR). As part of our goal to align all of our professional radiology service entities under the same business
model, effective January 1, 2008 we amended the services agreement with SPR which resulted in ERS recognizing revenue on a gross basis. This amendment resulted in the addition of $0.8 million in revenue in the three months ended March 31,
2008 and the addition of 24 new customers.

Our scan volumes grew 54% from first quarter 2007 to first quarter 2008 and same site volumes
increased 19% over the same periods. Historically, we have seen an increase in same-site volumes during the second and third quarters of each fiscal year, when weather conditions tend to be warmer in much of the United States. We believe these
increases are a result of increased outdoor and transportation activities during summer months. During the first and fourth quarters of each fiscal year, when weather conditions are colder for a large portion of the United States, we have
historically experienced relatively lower same-site volumes than those experienced during the second and third quarters. We expect this seasonality to continue. A summary of our historical volumes is as follows:



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|        |  |      |  |              |            |              |    |                |                                            |   |       |        |         |         |     |       
|------- |  | ---- |  | ------------ | ---------- | ------------ | -- | -------------- | ------------------------------------------ | - | ----- | ------ | ------- | ------- | --- | ------
|        |  |      |  | TotalVolumes |            | Growth Rates |    |                | Acquisition Contribution - First 12 Months
|Quarter |  | Year |  |              | Sequential |              |    | Year over Year |                                            |   | TDS * |        | Radlinx |         | ERS
|Q1      |  | 2007 |  | 484,477      |            | 8            | %  |                |                                            |   |       | 27,089 |         |        |     |      
|Q2      |  | 2007 |  | 731,418      |            | 51           | %  |                |                                            |   |       | 51,095 |         | 137,611 |     |      
|Q3      |  | 2007 |  | 787,673      |            | 8            | %  |                |                                            |   |       | 52,708 |         | 143,339 |     |      
|Q4      |  | 2007 |  | 730,992      |            | (7           | %) |                |                                            |   |       | 51,644 |         | 124,394 |     |      
|        |  |      |  |              |            |              |    |                |                                            |   |       |        |         |         |     |       
|FY      |  | 2007 |  | 2,734,560    |            | 62           | %  |                |                                            |   |       |        |         |         |     |       
|Q1      |  | 2008 |  | 745,075      |            | 2            | %  |                | 54                                         | % |       | 23,147 |         | 117,693 |     | 17,457



|* | TDS Acquisition volumes shown for Q1 2008 represent January 1, 2008 through February 9, 2008. The 12 month anniversary period ends February 9, 2008, so volumes read
after that date are classified as organic.
|- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Trends in Professional Service Fees.Since inception, our professional
service fees have increased in absolute dollars each year, primarily due to the addition of new affiliated radiologists to perform an increased workload as our business has grown. We expect that our professional service fees will continue to
increase in absolute dollars as we contract with additional radiologists to meet the increasing demand for our services, as we begin to offer additional services, and as a result of scheduled increases in hourly fees under our existing agreements
with our affiliated radiologists. In addition, as we have integrated the physician compensation models from our acquisitions, we have experienced and expect to continue to experience pressure on our professional service fees as a percentage of
revenue.

Trends in Medical Liability Expense.Our medical liability expense has also increased in absolute dollars each year since
inception, primarily due to increases in our medical liability premiums as our business has grown and our recording of IBNR. We expect our medical liability premiums and our IBNR expense to continue to increase in absolute dollars in future periods
as our business continues to grow. In addition, if we have claims in future periods for which we deem a liability to be probable, our medical liability expense may increase.

Trends in Physician Stock-Based Compensation Expense.The amount of physician stock-based compensation expense we record in a given period depends
primarily on the number of shares subject to outstanding options held by our affiliated radiologists, the number of hours worked, and the change in the value of our common stock in that period. Also, during periods when our stock price is rising,
under EITF 96-18, we will record a compensation expense that generally exceeds the expense we would have recorded if these individuals were employees. Our expense in future periods for physician stock-based compensation will be driven primarily by
new equity-based grants we make to our affiliated radiologists, the rate at which those equity awards and the currently outstanding options are earned over such periods, as well as changes, if any, in our stock price during such periods.

Trends in Sales, General and Administrative Expense. Our sales, general and administrative expense has increased in absolute dollars each year
since inception primarily as a result of increased payroll expenses in connection with the addition of key management personnel, software development professionals and general headcount. Our employee headcount increased from 265 at March 31,
2007 to 540 at March 31, 2008, partially as a result of our 2007 acquisitions. We expect that these payroll expenses will continue to change as we adjust headcount at all levels of our business to match our growth. We also expect that our
general and administrative expenses will increase in absolute dollars due to increases in telecommunications and information technology costs, licensing and privileging costs and increased accounting and legal costs due to growth. Also, we expect
that our general and administrative expense will increase in absolute dollars due to increases in facilities expenses related to our offices as well as the anticipated expansion of our Coeur dAlene office in 2008.

Trends in Non-Physician Stock-Based Compensation Expense. The amount of non-physician stock-based compensation expense we record in a given period
depends primarily on the number of shares subject to outstanding options and the valuation criteria used at the time of the grant. The amount of expense is also impacted by the accelerated method we use to expense these options. As we continue to
grant options and restricted stock units to our employees and directors, we expect our non-physician stock-based compensation expense to decrease in future periods.

Trends in Interest Expense.On April 5, 2007, we entered into a Credit Agreement relating to a term loan in an amount of $53.0 million to acquire The Radlinx Group, Ltd. On July 10, 2007, we entered
into an Amended and Restated Credit Agreement and increased our borrowings to $100.0 million to assist in funding the MPS and ERS acquisitions and associated fees. During the third quarter of 2007, we entered into two interest rate swap contracts to
cover the full $100.0 million in borrowings and to provide a hedge for us against changes in the interest payments associated with this variable-rate long-term debt. While these swaps are in place, our effective interest rate should be approximately
7.4%. We expect our interest expense to remain consistent in future periods unless we change our debt or hedge positions.



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Results of Operations

The following table sets forth selected consolidated statements of operations data for each of the periods indicated as a percentage of service revenue:



|                                      |  |                             |   |  |      |  
|------------------------------------- |  | --------------------------- | - |  | ---- | -
|                                      |  | Three Months EndedMarch 31, |  
|                                      |  | 2008                        |   |  | 2007 |  
|Service revenue                       |  | 100                         | % |  | 100  | %
|Operating costs and expenses:         |  |                             |   |  |      |  
|Professional services (1)             |  | 43                          |   |  | 40   |  
|Sales, general and administrative (2) |  | 44                          |   |  | 33   |  
|Depreciation and amortization         |  | 7                           |   |  | 3    |  
|                                      |  |                             |   |  |      |  
|Total operating costs and expenses    |  | 94                          |   |  | 76   |  
|                                      |  |                             |   |  |      |  
|Operating income                      |  | 6                           |   |  | 24   |  
|Other income (expense):               |  |                             |   |  |      |  
|Interest expense                      |  | (5                          | ) |  |     |  
|Interest income                       |  | 1                           |   |  | 3    |  
|Other, net                            |  |                            |   |  |     |  
|                                      |  |                             |   |  |      |  
|Total other income (expense)          |  | (4                          | ) |  | 3    |  
|                                      |  |                             |   |  |      |  
|Income before income taxes            |  | 2                           |   |  | 27   |  
|Income tax expense                    |  | 1                           |   |  | 10   |  
|                                      |  |                             |   |  |      |  
|Net income                            |  | 1                           |   |  | 17   |  
|                                      |  |                             |   |  |      |  



|(1) | Includes non-cash stock-based compensation expense of $0.6 million and $1.0 million for the three months ended March 31, 2008 and 2007, respectively.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------



|(2) | Includes non-cash stock-based compensation expense of $2.4 million and $0.8 million for the three months ended March 31, 2008 and 2007, respectively.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------

Comparison of Three Months Ended March 31, 2008 and March 31, 2007

Service Revenue



|                |  |                             |        |        |   |            |  |            |        |  |    |  
|--------------- |  | --------------------------- | ------ | ------ | - | ---------- |  | ---------- | ------ |  | -- | -
|                |  | Three Months EndedMarch 31, |        | Change |  
|                |  | (Dollars in thousands)      |       
|                |  | 2008                        |        | 2007   |   | In Dollars |  | Percentage |       
|Service revenue |  | $                           | 41,688 |        | $ | 25,882     |  | $          | 15,806 |  | 61 | %

The increase in service revenue from the three months ended March 31, 2007 to the three
months ended March 31, 2008 resulted primarily from a $3.8 million increase in organic revenue and $11.6 million in additional revenue from the TDS, Radlinx, MPS and ERS acquisitions. The organic growth is driven by a 21% increase in read
volumes due to an increase in utilization by our customers of our hours of service, an increase in the number of our customers and their affiliated sites, new services and the growth in the use of diagnostic imaging technologies and procedures in
the healthcare industry. New services accounted for 21% of our revenue in the three months ended March 31, 2008 compared to 4% for the same period of 2007. For the three months ended March 31, 2008, final interpretations were $4.6 million, or
11% of revenue.



25



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##### Table of Contents

Operating Costs and Expenses

Professional Services



|                              |  |                             |        |   |        |   |        |            |  |            |       |  |    |  
|----------------------------- |  | --------------------------- | ------ | - | ------ | - | ------ | ---------- |  | ---------- | ----- |  | -- | -
|                              |  | Three Months EndedMarch 31, |        |   | Change |  
|                              |  | (Dollars in thousands)      |       
|                              |  | 2008                        |        |   | 2007   |   |        | In Dollars |  | Percentage |      
|Professional services (1)     |  | $                           | 17,867 |   |        | $ | 10,373 |            |  | $          | 7,494 |  | 72 | %
|Percentage of service revenue |  |                             | 43     | % |        |   | 40     | %          |  |            |       |  |    |  



|(1) | Includes non-cash stock-based compensation expense of $0.6 million for the three months ended March 31, 2008 and $1.0 million for the three months ended March 31, 2007.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The increase in professional services expense for the three months ended March 31, 2008 compared to the three months
ended March 31, 2007 resulted primarily from an increase in the number of our affiliated radiologists providing service from 75 to 114. This increase in the number of affiliated radiologists was driven primarily by the addition of radiologists
in connection with our acquisition of TDS and Radlinx as well as the increased demand for our services. The following expenses comprise our professional services expense:



| |  |  | Professional Service Fees. Our professional service fees increased from $8.8 million for the three months ended March 31, 2007 to $15.7 million for the
same period in 2008, a 78% increase, and increased as a percentage of service revenue from 34% to 38%. This increase was primarily driven by the integration of the TDS and Radlinx physician compensation models. We expect margins to improve and
professional services expense to decline as a percentage of revenue as the integrations progress and our new affiliated radiologists productivity improves. We also incurred higher costs of approximately $0.6 million due to scheduling
constraints experienced during the quarter.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Physician Stock-Based Compensation Expense. Non-cash physician stock-based compensation expense for the three months ended March 31, 2008 dropped
39% or $0.4 million from the prior years comparable period. This primarily reflects the mark-to-market effect from the decrease in the stock price over the past twelve months. As a percentage of service revenue, physician stock-based
compensation expense decreased from 4% for the three months ended March 31, 2007 to 1% for the same period in 2008.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Medical Liability Expense. Our medical liability expense increased from $0.6 million for the three months ended March 31, 2007 to $1.6 million for the
three months ended March 31, 2008. The expense recorded in 2007 was solely related to medical liability premiums. The 2008 expense represents $0.5 million of medical liability premiums, $0.2 million for reported malpractice claim reserves and
the remaining $0.9 million was attributable to the increase in our estimated IBNR reserve for exposure related to potential medical liability claims that have not yet been reported. The increase in the current period IBNR reserve is primarily due to
the utilization of an indemnification clause related to our acquisition of Radlinx. As a result, we recorded $0.5 million of additional costs in the period ended March 31, 2008. We accrue IBNR amounts using actuarial calculations, models and
assumptions based on historical loss experience and industry indices.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Sales, General and Administrative



|                                      |  |                             |        |   |        |   |       |            |  |            |       |  |     |  
|------------------------------------- |  | --------------------------- | ------ | - | ------ | - | ----- | ---------- |  | ---------- | ----- |  | --- | -
|                                      |  | Three Months EndedMarch 31, |        |   | Change |  
|                                      |  | (Dollars in thousands)      |       
|                                      |  | 2008                        |        |   | 2007   |   |       | In Dollars |  | Percentage |      
|Sales, general and administrative (1) |  | $                           | 18,170 |   |        | $ | 8,464 |            |  | $          | 9,706 |  | 115 | %
|Percentage of service revenue         |  |                             | 44     | % |        |   | 33    | %          |  |            |       |  |     |  



|(1) | Includes non-cash stock-based compensation expense of $2.4 million for the three months ended March 31, 2008 and $0.8 million for the three months ended March 31, 2007.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Our sales, general and administrative expense increased 115% from the three months ended March 31, 2007 to the three
months ended March 31, 2008. This resulted primarily from increases in payroll expense due to additional hiring and additional headcount related to our acquisitions. Higher absolute spending was driven primarily by investments in new service
offerings and infrastructure, as well as the expansion of our management team along with temporary duplicative costs related to the recent acquisitions that have not yet been fully eliminated. The following expenses comprise our sales, general and
administrative expense:



| |  |  | Payroll and Related Expense.Our sales, general and administrative headcount increased from 265 at March 31, 2007 to 540 at March 31, 2008, a
104% increase, and resulted in an increase in non-stock-based payroll expense from $4.9 million for the three months ended March 31, 2007 to $10.0 million for the three months ended March 31, 2008, a 104% increase. This increase in payroll
expense resulted from acquisitions, additions due to new
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

| | business offerings, and new management. For the three months ended March 31, 2008, we also accrued severance payments and other costs relating to the
resignations of our Chief Operating Officer and Chief Financial Officer totaling $0.8 million. We also had a one time non-cash charge of $0.7 million for the acceleration of options held by our prior Chief Operating Officer.
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Information Technology and Telecommunications Expense. Our non-payroll information technology and telecommunications expense increased from $0.5 million
for the three months ended March 31, 2007 to $1.2 million for the three months ended March 31, 2008, a 129% increase. The increase in expense resulted from our acquisitions and organic growth as we have expanded our operations to include
centralized facilities in locations in the United States to support our service offerings as well as the increased number of affiliated radiologist we provide services for.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Facilities Expense. Our facilities and office-based expense increased from $0.6 million for the three months ended March 31, 2007 to $1.2 million
for the three months ended March 31, 2008, a 114% increase. The increase in facilities and office-based expense was driven primarily by the increase in number of facilities and occupancy expenses associated with the acquisitions.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Licensing and Privileging Expense. Our non-payroll licensing and privileging expense consists primarily of fees paid in connection with the state
medical licenses and hospital privileges we obtain on behalf of our affiliated radiologists. Licensing and privileging expense is driven by the timing of new contracted physicians and the timing of renewals for existing physicians licenses and
credentials. Non-payroll licensing and privileging expenses increased from $0.4 million for the three months ended March 31, 2007 to $1.0 million for the three months ended March 31, 2008. Approximately $0.2 million of this increase was
driven by our licensing and privileging of radiologists as part of our partnership with SPR.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Other General and Administrative Expense. Our other general and administrative expense consists primarily of professional accounting, legal and consulting
services, general liability insurance and employee-related expenses such as recruiting, travel and entertainment. As a percentage of service revenue, other general and administrative expense increased from 4% for the three months ended
March 31, 2007 to 5% for the same period of 2008. Other general and administrative expense increased from $1.1 million for the three months ended March 31, 2007 to $2.2 million for the three months ended March 31, 2008, a 94%
increase. The increase in other general and administrative expense was driven primarily by higher accounting, consulting and legal costs, as well as higher travel costs.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Other Income (Expense)

Interest Expense



|                              |  |                             |       |   |        |   |   |            |  |            |       |  |     |  
|----------------------------- |  | --------------------------- | ----- | - | ------ | - | - | ---------- |  | ---------- | ----- |  | --- | -
|                              |  | Three Months EndedMarch 31, |       |   | Change |  
|                              |  | (Dollars in thousands)      |      
|                              |  | 2008                        |       |   | 2007   |   |   | In Dollars |  | Percentage |      
|Interest expense              |  | $                           | 2,187 |   |        | $ | 1 |            |  | $          | 2,186 |  | 100 | %
|Percentage of service revenue |  |                             | 5     | % |        |   |  | %          |  |            |       |  |     |  

Our interest expense for the three months ended March 31, 2008 consists of the interest
expense incurred on term loans under our current Credit Facility. On April 5, 2007 we borrowed $53.0 million in connection with the Radlinx acquisition and an additional $47.0 million on July 10, 2007 in connection with the MPS and ERS
acquisitions. Also included in interest expense is $0.4 million of amortized deferred loan fees.

Interest Income



|                              |  |                             |     |   |        |   |     |            |  |   |            |   |  |     |   
|----------------------------- |  | --------------------------- | --- | - | ------ | - | --- | ---------- |  | - | ---------- | - |  | --- | --
|                              |  | Three Months EndedMarch 31, |     |   | Change |  
|                              |  | (Dollars in thousands)      |    
|                              |  | 2008                        |     |   | 2007   |   |     | In Dollars |  |   | Percentage |  
|Interest Income               |  | $                           | 527 |   |        | $ | 888 |            |  | $ | (361       | ) |  | (41 | )%
|Percentage of service revenue |  |                             | 1   | % |        |   | 3   | %          |  |   |            |   |  |     |   

The decrease in our interest income for the three months ended March 31, 2008 compared to the
three months ended March 31, 2007 is due to a higher average balance and better market rates in 2007.



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##### Table of Contents

Income Tax Expense



|                              |  |                             |     |   |        |   |       |            |  |   |            |   |  |     |   
|----------------------------- |  | --------------------------- | --- | - | ------ | - | ----- | ---------- |  | - | ---------- | - |  | --- | --
|                              |  | Three Months EndedMarch 31, |     |   | Change |  
|                              |  | (Dollars in thousands)      |    
|                              |  | 2008                        |     |   | 2007   |   |       | In Dollars |  |   | Percentage |  
|Income tax expense            |  | $                           | 490 |   |        | $ | 2,748 |            |  | $ | (2,258     | ) |  | (82 | )%
|Percentage of service revenue |  |                             | 1   | % |        |   | 10    | %          |  |   |            |   |  |     |   

The decrease in our income tax expense was due primarily to lower earnings in the current quarter.

Liquidity and Capital Resources

Cash, Cash
Equivalents and Marketable Securities

Our financial position includes cash, cash equivalents and marketable securities of $66.8
million at March 31, 2008 and $62.6 million at December 31, 2007.

The discussion below highlights significant aspects of our capital
resources and cash flow activities (in millions).



|                          |  |                |      |                   |   |     
|------------------------- |  | -------------- | ---- | ----------------- | - | ----
|Capital resources         |  | March 31, 2008 |      | December 31, 2007
|Cash and cash equivalents |  | $              | 33.6 |                   | $ | 32.0
|Marketable Securities     |  |                | 33.2 |                   |   | 30.6
|                          |  |                |      |                   |   |     
|Total                     |  | $              | 66.8 |                   | $ | 62.6
|                          |  |                |      |                   |   |     



|                                                 |  |                    |      |   |                |   |       |  
|------------------------------------------------ |  | ------------------ | ---- | - | -------------- | - | ----- | -
|                                                 |  | Three Months Ended |     
|Cash flow activities                             |  | March 31, 2008     |      |   | March 31, 2007 |  
|Net cash provided (used) by:                     |  |                    |      |   |                |   |       |  
|Operating activities                             |  | $                  | 5.8  |   |                | $ | 8.2   |  
|Investing activities                             |  |                    | (4.2 | ) |                |   | (16.5 | )
|Financing activities                             |  |                    | 0.1  |   |                |   | 0.4   |  
|                                                 |  |                    |      |   |                |   |       |  
|Increase (decrease) in cash and cash equivalents |  | $                  | 1.7  |   |                | $ | (7.9) |  
|                                                 |  |                    |      |   |                |   |       |  

The discussion below highlights significant aspects of our cash flows.

Operating Activities

Since
our inception in August 2001, we have funded our operations primarily from cash flows generated by our operating activities. Net cash from operations was $5.8 million for the three months ended March 31, 2008 and $8.2 million for three months
ended March 31, 2007.

For the three months ended March 31, 2008, we generated net cash from operations of $5.8 million from
net income of $0.7 million. Significant non-cash charges included in net income that did not impact our net cash from operations during this period include depreciation and amortization of $2.8 million and stock compensation expense of $2.9 million.

For the three months ended March 31, 2007, we generated net cash from operations of $8.2 million from net income of $4.3
million. Significant non-cash charges included in net income that did not impact our net cash from operations during this period include depreciation and amortization of $0.9 million and stock compensation expense of $1.8 million.

The changes in our operating assets and liabilities, net of acquisitions, and the associated impacts on our net cash from operations during the three
months ended March 31, 2008 as compared to the changes during the three months ended March 31, 2007 are primarily due to the following factors:



| |  |  | Prepaid Expenses and Other Assets. Prepaid expenses and other assets increased by $2.5 million during the three months ended March 31, 2008. This
increase was primarily due to the renewal and prepayment of several insurance policies and prepayments regarding facility related items.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

| |  |  | Accrued Payroll and Related Benefits and Accrued Performance Bonus. Accrued payroll and related benefits and accrued performance bonus increased an
aggregate $0.6 million during the three months ended March 31, 2008. This increase was primarily due to accrued but unpaid severance related to the resignations of the Chief Operating Officer and Chief Financial Officer totaling, $0.8 million,
and an increase in accrued vacation of $0.3 million, partially offset by fewer days in the payroll accrual as compared to December 31, 2007.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Net Cash Used in Investing Activities

Net cash used in investing activities was $4.2 million
for the three months ended March 31, 2008 compared to $16.5 million for the three months ended March 31, 2007. For the three months ended March 31, 2008, net cash used in investing activities was primarily attributable to an increase
in property and equipment relating to computer equipment and software purchases and the net purchases of marketable securities. For the three months ended March 31, 2007, net cash used by investing activities was primarily attributable to the
use of $21.9 million in the acquisition of TDS and the net sale of marketable securities.

Investments in marketable securities are
classified as investing activities on the Condensed Consolidated Statement of Cash Flows. Investment activity during the three months ended March 31, 2008 included the purchase of $10.3 million in marketable securities, offset by cash receipts
of $7.8 million as a result of certain investments reaching maturity during the period. Investment activity during the three months ended March 31, 2008 included the purchase of $11.4 million in marketable securities, offset by cash receipts of
$17.9 million as a result of our need to fund the TDS acquisition.

We also invested $1.6 million in property and equipment during the
three months ended March 31, 2008 compared to $1.2 million in 2007. The majority of these capital expenditures were associated with computer equipment and the continued investment in our information technology infrastructure.

Net Cash Provided By Financing Activities

Net cash used in financing activities was $0.1 million for the three months ended March 31, 2008. These amounts mostly represent the cash payments for debt principal offset by the proceeds from the exercise of
stock options and excess tax provision from exercise of stock options during the quarter.

Net cash provided by financing activities was
$0.4 million for the three months ended March 31, 2007. These amounts mostly represent the cash proceeds from the exercise of stock options and excess tax provision from exercise of stock options during the quarter.

Financial condition and liquidity

We expect our long-term liquidity needs to consist primarily of working capital, capital expenditure requirements and future acquisitions. Also, on May 7, 2008 we announced that we expect to commence a Dutch Auction tender offer
to purchase shares of our common stock up to an aggregate purchase price of $50.0 million. We intend to fund these liquidity needs from current capital resources, cash generated from operations and our credit agreement entered into April 5,
2007. We believe our capital resources will be sufficient to meet our anticipated cash needs for at least the next twelve months.

Off-Balance Sheet Arrangements and Contractual Obligations

Off-Balance Sheet Arrangements

Our Sydney and San Francisco offices leases are collateralized by separate letters of credit in the amounts of $0.2 million and $0.1 million,
respectively, as of March 31, 2008. Our medical liability insurance policy is also collateralized by a separate letter of credit in the amount of $0.4 million as of March 31, 2008.

Contractual Obligations

There have been no
significant changes to our contractual obligations table as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2007.

RECENT ACCOUNTING STANDARDS

Information regarding recently adopted and new accounting pronouncements is included in Note 1
Summary Of Significant Accounting Policies, of the Notes to the Condensed Consolidated Financial Statements in Item 1.



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##### Table of Contents

|ITEM 3. | Quantitative and Qualitative Disclosures About Market Risk
|------- | ----------------------------------------------------------

Foreign Currency Exchange Risk

Although a large number of our affiliated radiologists work from our centralized
reading facilities in Australia and Switzerland, the professional service fees we pay to our affiliated radiologists are denominated primarily in U.S. dollars. As a result, only our operating leases in those countries present foreign currency
exchange risks. Because we are not currently subject to material foreign currency exchange risk, we have not, to date, entered into any hedging contracts. If a weakening U.S. dollar requires us to increase the amounts we pay to our affiliated
radiologists in the future in order to maintain a constant level of compensation denominated in U.S. dollars, our results of operations and cash flows could be affected. Any foreign exchange risks are related to the foreign currency exchange rates
between the U.S. dollar and the Australian dollar and between the U.S. dollar and the Swiss franc.

Interest Rate Sensitivity

We had cash and cash equivalents totaling $33.6 million at March 31, 2008. These amounts were invested primarily in
interest-bearing money market accounts. Additionally, we had marketable securities totaling $33.2 million at March 31, 2008 invested primarily in U.S. government agency securities and municipal securities. The cash and cash equivalents are held
for working capital purposes. We do not enter into investments for trading or speculative purposes. We believe that we do not have any material exposure to changes in the fair value of our investment portfolio as a result of changes in interest
rates. However, any declines in interest rates will reduce future investment income.

As of March 31, 2008, we had $99.3 million in
variable rate debt. Because of the two interest rate swap contracts entered in to during 2007, this outstanding debt is not subject to interest rate risk during the terms of such contracts. For more information on our hedging activities, see
Note 10 Derivative Financial Instruments, of the Notes to Condensed Consolidated Financial Statements in Item 1.



|ITEM 4. | Controls and Procedures
|------- | -----------------------

Evaluation of Disclosure Controls and
Procedures

As of the end of the three months ended March 31, 2008, we carried out an evaluation, under the supervision and with
the participation of management, including the Companys Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Companys disclosure controls and procedures (as defined in
Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that as of March 31, 2008, the Companys disclosure controls and
procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934) were effective.

Changes in Internal Controls over Financial
Reporting

During the three months ended March 31, 2008, there were no changes in the Companys internal control over
financial reporting that has materially affected or is reasonably likely to materially affect such internal control over financial reporting.



30



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##### Table of Contents

PART II  OTHER INFORMATION



|ITEM 1. | Legal Proceedings
|------- | -----------------

We are involved in various legal
proceedings arising in the ordinary course of our business activities. We maintain insurance policies with coverages that we believe are appropriate in light of the risks attendant to our business, and believe that the resolution of the current
claims will not have a material adverse impact on our consolidated results of operations, cash flows or our financial position. However, depending on the amount of damages resulting from a current or future claim, an unfavorable resolution of a
claim could materially affect our future results of operations, cash flows or financial position.



|ITEM 1A. | Risk Factors
|-------- | ------------

YOU SHOULD CAREFULLY CONSIDER THE
RISKS DESCRIBED BELOW BEFORE MAKING AN INVESTMENT DECISION. OUR BUSINESS, PROSPECTS, FINANCIAL CONDITION OR OPERATING RESULTS COULD BE MATERIALLY ADVERSELY AFFECTED BY ANY OF THESE RISKS. THE TRADING PRICE OF OUR COMMON STOCK COULD DECLINE DUE TO
ANY OF THESE RISKS AND YOU MAY LOSE ALL OR PART OF YOUR INVESTMENT. IN ASSESSING THE RISKS DESCRIBED BELOW, YOU SHOULD ALSO REFER TO THE OTHER INFORMATION CONTAINED IN THIS REPORT, INCLUDING OUR CONSOLIDATED FINANCIAL STATEMENTS AND THE RELATED
NOTES, BEFORE DECIDING TO PURCHASE ANY SHARES OF OUR COMMON STOCK.

We have a short operating history in an emerging market,
which makes it difficult to evaluate our business and prospects.

We have a short operating history in an emerging market. As a
result, our current business and future prospects are difficult to evaluate. You must consider our business and prospects in light of the risks and difficulties we encounter as an early-stage company in a rapidly evolving market. Some of these risks
relate to our potential inability to:



| |  |  | effectively manage our business and technology,
| | - |  | -----------------------------------------------



| |  |  | effectively manage the integration of companies that we have acquired, or in the future may acquire,
| | - |  | ----------------------------------------------------------------------------------------------------



| |  |  | develop new services that complement our existing business,
| | - |  | -----------------------------------------------------------



| |  |  | market our services to our customers due to regulatory rules governing reassignment of payments, which could affect our customers ability to collect fees for
services provided by our affiliated radiologists,
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | acquire additional customers,
| | - |  | -----------------------------



| |  |  | successfully provide high levels of service quality as we expand the scale of our business,
| | - |  | -------------------------------------------------------------------------------------------



| |  |  | manage rapid growth in personnel and operations,
| | - |  | ------------------------------------------------



| |  |  | effectively manage our medical liability risk, and
| | - |  | --------------------------------------------------



| |  |  | recruit and retain radiologists and other key personnel.
| | - |  | --------------------------------------------------------

We may not be able to successfully address these and the other risks described in this report. Failure to adequately do so would harm our business and cause our operating results to suffer. Furthermore, our limited
operating history has resulted in revenue growth rates that we may not be able to sustain, and therefore may not be indicative of our future results of operations. As a result, the price of our common stock could decline.

The market in which we participate is competitive and we expect competition to increase in the future, which will make it more difficult for us to
sell our services and may result in pricing pressure, reduced revenue and reduced market share.

The market for professional
radiology services and business process services is competitive and rapidly changing, barriers to entry are relatively low, and with the introduction of new technologies and market entrants, we expect competition to intensify in the future. If we
fail to compete effectively, our operating results will be harmed. Some of our principal competitors, including our largest competitor, Virtual Radiologic Corporation, offer their services at a lower price, which has resulted and may continue to
result in pricing pressure and lost customers. If we are unable to maintain our current pricing, our operating results could be negatively impacted. In addition, pricing pressures and increased competition could result in reduced revenue, reduced
profits or the failure of our services to achieve or maintain more widespread market acceptance, any of which could harm our business.



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In addition, if companies larger than we are enter the market through internal expansion or acquisition
of one of our competitors, the change in the competitive landscape could adversely affect our ability to compete effectively. These competitors could have established customer relationships and greater financial, technical, sales, marketing and
other resources than we do, and may be able to respond more quickly to new or emerging technologies or devote greater resources to the development, promotion and sale of their services. This competition could harm our ability to sell our services,
which may lead to lower prices, reduced revenue and, ultimately, reduced market share.

If we acquire any companies or technologies
in the future, they could prove difficult to integrate, disrupt our business, dilute stockholder value and adversely affect our operating results.

A key element of our strategy is to pursue strategic acquisitions that are complementary to our business or offer us other strategic benefits. Acquisitions in which we may engage involve numerous risks, including:



| |  |  | difficulties or delays in integrating physician compensation models,
| | - |  | --------------------------------------------------------------------



| |  |  | difficulties in integrating operations, technologies, services and personnel,
| | - |  | -----------------------------------------------------------------------------



| |  |  | diversion of financial and management resources from existing operations,
| | - |  | -------------------------------------------------------------------------



| |  |  | risk of entering new markets,
| | - |  | -----------------------------



| |  |  | potential write-offs of acquired assets,
| | - |  | ----------------------------------------



| |  |  | potential loss of key employees, and
| | - |  | ------------------------------------



| |  |  | inability to generate sufficient revenue to offset acquisition costs.
| | - |  | ---------------------------------------------------------------------

We may experience these difficulties as we integrate the operations of future companies we acquire with our operations.

In addition, if we finance acquisitions by issuing convertible debt or equity securities, our existing stockholders may be diluted which could affect the
market price of our stock. Including the acquisitions of Midwest Physicians Services, LLC, Emergency Radiology Services, LLC, Teleradiology Diagnostic Service, Inc. and The Radlinx Group, Ltd., we have made six acquisitions to date, and our
management has limited experience in completing acquisitions and integrating acquired businesses with our operations. If we fail to properly evaluate and execute acquisitions, our business and prospects may be harmed.

If our arrangements with our affiliated radiologists or our customers are found to violate state laws prohibiting the corporate practice of
medicine or fee splitting, our business, financial condition and our ability to operate in those states could be adversely impacted.

The laws of many states, including states in which our customers are located, prohibit us from exercising control over the medical judgments or decisions of physicians and from engaging in certain financial arrangements, such as splitting
professional fees with physicians. These laws and their interpretations vary from state to state and are enforced by state courts and regulatory authorities, each with broad discretion. We enter into agreements with our affiliated radiologists
pursuant to which the radiologists render professional medical services. In addition, we enter into agreements with our customers to deliver professional radiology interpretation services in exchange for a service fee. We structure our relationships
with our affiliated radiologists and our customers in a manner that we believe is in compliance with prohibitions against the corporate practice of medicine and fee splitting. While we have not received notification from any state regulatory or
similar authorities asserting that we are engaged in the corporate practice of medicine or that the payment of service fees to us by our customers constitutes fee splitting, if such a claim were successful, we could be subject to civil and criminal
penalties and could be required to restructure or terminate the applicable contractual arrangements. A determination that these arrangements violate state statutes, or our inability to successfully restructure our relationships with our affiliated
radiologists to comply with these statutes, could eliminate customers located in certain states from the market for our services, which would have a materially adverse effect on our business, financial condition and operations.

We may be unable to successfully expand our services beyond the off-hours emergency radiology market.

We have historically focused our business on providing emergency radiology services during the hours of 5:00 p.m. to 8:00 a.m. and 24 hours per day on
weekends and holidays. In 2006, we expanded our hours of service to 24 hours, 7 days a week and began offering final reads and sub-specialty services, including cardiac imaging services, to enhance our service offerings to our customers. In
addition, our acquisitions of MPS and ERS will permit us to provide a more complete suite of



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solutions to radiology groups. However, our efforts to provide these final reads and sub-specialty services, or any other services beyond our current
services offerings and radiology solutions, may not result in significant revenue growth for us. In addition, efforts to expand our services into these new markets may divert management resources from existing operations and require us to commit
significant financial resources to an unproven business. To support these service offerings, we have recently opened two additional centralized reading centers in San Francisco, California and Austin, Texas, similar to our facilities in Sydney,
Australia and Zurich, Switzerland. If we are unable to effectively and profitably expand our offerings in these areas, our business, financial condition and results of operations could be adversely affected.

If our affiliated radiologists are characterized as employees, we would be subject to employment and withholding liabilities and may be subject to
prohibitions against the corporate practice of medicine.

We structure our relationships with our affiliated radiologists in a
manner that we believe results in an independent contractor relationship, not an employee relationship. An independent contractor is generally distinguished from an employee by his or her degree of autonomy and independence in providing services. A
high degree of autonomy and independence is generally indicative of a contractor relationship, while a high degree of control is generally indicative of an employment relationship. Although we believe that our affiliated radiologists are properly
characterized as independent contractors, tax or other regulatory authorities may in the future challenge our characterization of these relationships. If such regulatory authorities or state, federal or foreign courts were to determine that our
affiliated radiologists are employees, and not independent contractors, we would be required to withhold income taxes, to withhold and pay social security, Medicare and similar taxes and to pay unemployment and other related payroll taxes. We would
also be liable for unpaid past taxes and subject to penalties. In addition, such a determination may also result in a finding that we are engaged in the corporate practice of medicine in violation of the laws of many states. As a result, any
determination that our affiliated radiologists are our employees would materially harm our business and operating results.

Our
growth strategy depends on our ability to recruit and retain qualified radiologists and other skilled personnel. If we are unable to do so, our future growth would be limited and our business and operating results would be harmed.

Our success is dependent upon our continuing ability to recruit and retain qualified radiologists. An inability to recruit and
retain radiologists would have a material adverse effect on our ability to grow and would adversely affect our results of operations. We face competition for radiologists from other healthcare providers, including radiology groups, research and
academic institutions, government entities and other organizations. In addition, our affiliated radiologists are typically U.S. citizens who must obtain visas to work in Australia or Switzerland. We have worked with the government of Australia to
establish a visa program and have assisted our affiliated radiologists in the visa application process with the government of Switzerland, and to date all of our professionals have successfully obtained work visas in a timely manner. However, any
future inability to obtain or difficulty in obtaining work visas for our affiliated radiologists, due to changing immigration regulations or otherwise, would jeopardize our business and harm our results.

In addition to recruiting radiologists, we must identify, recruit and retain skilled executive, technical, administrative, sales, marketing and
operations personnel for our headquarters in Coeur dAlene, Idaho. Competition for highly qualified and experienced personnel is intense due to the limited number of people available with the necessary skills. In addition, Coeur dAlene
has a relatively small pool of potential employees with the skills that we require, and is a small city in a relatively rural part of the country, making it difficult for us to recruit employees from larger metropolitan areas of the country. Failure
to attract and retain the necessary personnel would inhibit our growth and harm our business.

We have been subject to medical
liability claims and may become subject to additional claims, which could cause us to incur significant expenses and may require us to pay significant damages if not covered by insurance.

Our business entails the risk of medical liability claims against our affiliated radiologists and us. We or our affiliated radiologists are subject to
ongoing medical liability claims in the ordinary course of business. Although we maintain medical liability insurance for ourselves and our affiliated radiologists with coverage that we believe is appropriate in light of the risks attendant to our
business, successful medical liability claims could result in substantial damage awards which exceed the limits of our insurance coverage. In addition, medical liability insurance is expensive and insurance premiums may increase significantly in the
future, particularly as we expand our services to include final and sub-specialty reads and cardiac imaging services. As a result, adequate medical liability insurance may not be available to our affiliated radiologists or us in the future at
acceptable costs or at all.

Any claims made against us that are not fully covered by insurance could be costly to defend against, result
in substantial damage awards against us and divert the attention of our management and our affiliated radiologists from our operations, which could adversely affect our operations and financial performance. In addition, any claims might adversely
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We indemnify our radiology group and hospital customers against damages or liabilities that they may
incur as a result of the actions of our affiliated radiologists or us. We also indemnify some of our affiliated radiologists against medical liability claims. Our indemnification obligations are typically payable only to the extent that damages
incurred are not covered by insurance.

We have also assumed and succeeded to substantially all of the obligations of the businesses that
we have acquired. Medical liability claims may be asserted against us for events that occurred prior to these acquisitions. In connection with our acquisitions, the sellers of the businesses that we have acquired have agreed to indemnify us for
certain claims. However, we may not be able to collect payment under these indemnity agreements, which could affect us adversely.

Our customers may terminate their agreements with us, or their agreements with the hospitals that they serve may be terminated, either of which could adversely affect our financial condition and operating results.

Our revenue is derived primarily from fee-for-service billings to our radiology group customers. Our agreements with our customers generally provide
for one-year terms and automatically renew for successive one-year terms unless terminated by our customers or us upon 30 days prior notice. Following the first anniversary of the agreements, the agreements typically may be terminated at any time by
our customers or us upon 60 days prior notice. Our customers may elect not to renew their contracts with us, they may seek to renegotiate the terms of their contracts or they may choose to reduce or eliminate our services in the future. If our
arrangements with our customers are canceled, or are not renewed or replaced with other arrangements having at least as favorable terms, our business, financial condition and results of operations could be adversely affected. In addition, to the
extent that our radiology group customers agreements with the hospitals that they serve are terminated, our business, financial condition and results of operations could be adversely affected.

If our security measures are breached and unauthorized access is obtained to patient or customer data, we may face liabilities and our system may
be perceived as not being secure, causing customers to curtail or stop using our services, which could lead to a decline in revenues.

We are required to implement administrative, physical and technological safeguards to ensure the security of the patient data that we create, process or store. These safeguards may fail to ensure the security of patient or customer data,
thereby subjecting us to liability, including civil monetary penalties and possible criminal penalties. If our security measures are breached, whether as a result of third party action, employee error, malfeasance or otherwise, and, as a result,
someone obtains unauthorized access to patient or customer data, our reputation will be damaged, our business may suffer and we could incur significant liability. Because techniques used to obtain unauthorized access to systems change frequently and
generally are not recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate preventive measures.

Enforcement of federal and state laws regarding privacy and security of patient information may adversely affect our business, financial condition or operations.

The use and disclosure of certain healthcare information by healthcare providers and their business associates have come under increasing public scrutiny.
Federal standards under the Health Insurance Portability and Accountability Act of 1996, or HIPAA, establish rules concerning how individually-identifiable health information may be used, disclosed and protected. Historically, state law has governed
confidentiality issues and HIPAA preserves these laws to the extent they are more protective of a patients privacy or provide the patient with more access to his or her health information. As a result of the implementation of the HIPAA
regulations, many states are considering revisions to their existing laws and regulations that may or may not be more stringent or burdensome than the federal HIPAA provisions. We must operate our business in a manner that complies with all
applicable laws, both federal and state and that does not jeopardize the ability of our customers to comply with all applicable laws to which they are subject. We believe that our operations are consistent with these legal standards. Nevertheless,
these laws and regulations present risks for healthcare providers and their business associates that provide services to patients in multiple states. Because few of these laws and regulations have been interpreted by government regulators or courts,
our interpretations and activities may be challenged. If a challenge to our activities is successful, it could have an adverse effect on our operations, may require us to forgo relationships with customers in certain states, and may restrict the
territory available to us to expand our business. In addition, even if our interpretations of HIPAA and other federal and state laws and regulations are correct, we could be held liable for unauthorized uses or disclosures of patient information as
a result of inadequate systems and controls to protect this information or due to the theft of information by unauthorized computer programmers who penetrate our network security.

Future changes in healthcare regulation are difficult to predict and may constrain or require us to restructure our operations, which could
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The healthcare industry is heavily regulated and subject to frequent changes in governing laws and
regulations as well as to evolving administrative interpretations. Our business could be adversely affected by regulatory changes at the federal or state level that impose new requirements for licensing, new restrictions on reimbursement for medical
services by government programs, new pretreatment certification requirements for patients seeking radiology procedures, or new limitations on services that can be performed by us. In addition, federal, state and local legislative bodies have adopted
and continue to consider medical cost containment legislation and regulations that have restricted or may restrict reimbursement to entities providing services in the healthcare industry and referrals by physicians to entities in which the
physicians have a direct or indirect financial interest or other relationship. For example, Medicare recently adopted a regulation that limits the technical component of the reimbursement for multiple diagnostic tests performed during a single
session at medical facilities other than hospitals. Any of these or future reimbursement regulations or policies could limit the number of diagnostic tests our customers order and could have a material adverse effect on our business.

Although we monitor legal and regulatory developments and modify our operations from time to time as the regulatory environment changes, we may not be
able to adapt our operations to address every new regulation, and such regulations may adversely affect our business. In addition, although we believe that we are operating in compliance with applicable federal and state laws, our business
operations have not been scrutinized or assessed by judicial or regulatory agencies. We cannot assure you that a review of our business by courts or regulatory authorities would not result in a determination that adversely affects our operations or
that the healthcare regulatory environment will not change in a way that will restrict our operations.

Our growth and our continued
operations as a publicly-traded company could strain our personnel, management and infrastructure resources, which may harm our business.

We are currently experiencing a period of rapid growth in our headcount and operations, which has placed, and will continue to place, a significant strain on our management, administrative, operational and financial infrastructure. We also
anticipate that further growth will be required to address increases in the scope of our operations and size of our customer base. Our success will depend in part upon the ability of our current senior management team to manage this growth, as well
as to manage our operations as a publicly-traded company effectively.

To effectively manage our anticipated growth, we will need to
continue to improve our operational, financial and management processes and controls and our reporting systems and procedures. In addition, the additional headcount we are adding and capital investments we are making will increase our costs, which
will make it more difficult for us to offset any future revenue shortfalls by offsetting expense reductions in the short term. If we fail to successfully manage our growth and our operations as a publicly-traded company, our business and operating
results will be harmed.

Our operating results are subject to seasonal fluctuation, which makes our results difficult to predict and
could cause our performance to fall short of quarterly expectations.

We have experienced increased demand for and revenues from our
services during the second and third fiscal quarters of each year. We believe that these increases are a result of increased outdoor and transportation activities during summer months. During the first and fourth quarters of each fiscal year, when
weather conditions are colder for a large portion of the United States, we have historically experienced relatively lower revenues than those experienced during the second and third quarters. We may continue to experience this or other seasonality
in the future. These seasonal factors may lead to unpredictable variations in our quarterly operating results and cause the trading price of our common stock to decline. Additionally, our ability to schedule adequate radiologist coverage during the
seasonal period of increased demand for our services may affect our ability to provide appropriate turnaround times in our services to clients.

Interruptions or delays in our information systems or in network or related services provided by third-party suppliers could impair the delivery of our services and harm our business.

Our operations depend on the uninterrupted performance of our information systems, which are substantially dependent on systems provided by third parties
over which we have little control. Failure to maintain reliable information systems, or disruptions in our information systems could cause disruptions and delays in our business operations which could have a material adverse effect on our business,
financial condition and results of operations.

We rely on broadband connections provided by third party suppliers to route digital images
from hospitals in the United States to our facilities in Australia, Switzerland and the United States. Any interruption in the availability of the network connections between the hospitals and our reading facilities would reduce our revenue and
profits. Frequent or persistent interruptions in our services could cause permanent harm to our reputation and brand and could cause current or potential customers to believe that our systems are unreliable, leading them to switch to our
competitors. Because our customers may use our services for critical healthcare services, any system failures could result in damage to our customers businesses and



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reputation. These customers could seek significant compensation from us for their losses, and our agreements with our customers do not limit the amount of
compensation that they may receive. Any claim for compensation, even if unsuccessful, would likely be time consuming and costly for us to resolve.

Although our systems have been designed around industry-standard architectures to reduce downtime in the event of outages or catastrophic occurrences, they remain vulnerable to damage or interruption from earthquakes, floods, fires, power
loss, telecommunication failures, terrorist attacks, computer viruses, break-ins, sabotage, and acts of vandalism. In addition, the connections from hospitals to our reading facility in Australia rely on two cables that link the west coast of the
United States with Australia. Despite any precautions that we may take, the occurrence of a natural disaster or other unanticipated problems at our reading facilities or in the networks that connect our reading facilities with our hospitals could
result in lengthy interruptions in our services. We do not carry business interruption insurance to protect us against losses that may result from interruptions in our service as a result of system failures.

Hospital privileging requirements or physician licensure laws may limit our market, and the loss of hospital privileges or state medical licenses
held by our affiliated radiologists could have a material adverse affect on our business, financial condition and results of operations.

Each of our affiliated radiologists must be granted privileges to practice at each hospital from which the radiologist receives radiological images and must hold a license in good standing to practice medicine in the state in which the
hospital is located. The requirements for obtaining and maintaining hospital privileges and state medical licenses vary significantly among hospitals and states. If a hospital or state restricts or impedes the ability of physicians located outside
of the United States to obtain privileges or a license to practice medicine at that hospital or in that state, the market for our services could be reduced. In addition, any loss of existing privileges or medical licenses held by our affiliated
radiologists could impair our ability to serve our existing customers and have a material adverse affect on our business, financial condition and results of operations.

Medicare and Medicaid rules governing reassignment of payments could affect our customers ability to collect fees for services provided by our affiliated radiologists and our ability to market our services
to our customers.

The majority of our customers are radiology practices. These customers, and not us, typically bill and receive
payments from Medicare and/or Medicaid for the professional services provided by our affiliated radiologists. Medicare and Medicaid generally prohibit a physician who performs a covered medical service from reassigning to anyone else
(including to other physicians) the performing physicians right to receive payment directly from Medicare or Medicaid, except in certain circumstances. We believe that the services provided by our affiliated radiologists satisfy one or more of
the exceptions to this prohibition, but the various Medicare carriers and state Medicaid authorities may interpret these exceptions differently than we do. Because Medicare and Medicaid payments may comprise a significant portion of the total
payments received by our customers for the services of our affiliated radiologists, if it were determined that we do not qualify for an exception, our customers could be prohibited from billing Medicare and/or Medicaid for the services of our
affiliated radiologists and this would cause a material adverse effect on our ability to market our services and on our business and results of operations. Future laws or regulations, moreover, may require that we bill Medicare or Medicaid directly
for new services we provide to our customers. Should this occur, we would either be required to forgo business with such customers or be required to design, develop and implement an appropriate recordkeeping and billing system to bill Medicare and
Medicaid.

Medicare reimbursement rules currently provide that the proper Medicare carrier to pay physician claims is the Medicare carrier
for the region in which the physician or practice providing the service is located, rather than the Medicare carrier for the region in which the patient receiving the services is located. Many of our affiliated radiologists are located in a Medicare
region that is different from the Medicare region in which the patient and treating hospital are located. Since it is incumbent on our customers to file with the proper Medicare carrier in order to receive payment, it may be necessary for our
customers to enroll with additional Medicare carriers in order to properly submit claims for reimbursement. To the extent that our customers are unwilling or unable to do so, they may be unwilling to use our services unless we were to submit the
claims. Should this occur, we would either be required to forgo business with such customers or be required to design, develop and implement an appropriate recordkeeping and billing system to bill Medicare and Medicaid. The Center for Medicare and
Medicaid Services, or CMS, recently proposed amending the reimbursement rules to provide for reimbursement by the Medicare carrier for the region in which the patient and hospital are located regardless of the location of the physician. If adopted,
the amended reimbursement rules would eliminate the need for our customers to enroll with additional Medicare carriers.

Changes in
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Although most reads we provide are preliminary reads rather than final reads, we are providing an
increasing number of final and sub-specialty reads and cardiac imaging services. Cost containment pressures on Medicare and Medicaid could result in a reduction in the amount that the government will pay for these reads, which could cause pricing
pressure on our services. Should that occur, we could be required to lower our prices, or our customers could elect to provide the reads themselves or obtain such services from one of our competitors, and not utilize the services of our affiliated
radiologists, which would have a material adverse effect on our business, results of operations and financial condition.

We may be
subject to less favorable levels of payment based upon third party payor fee schedules.

Many patients are covered by some form of
private or government health insurance or other third party payment program. Third party payors generally establish fee schedules or other payment authorization methods for various procedures that govern which procedures will be reimbursed by the
third party payors and the amount of reimbursement. To the extent that such schedules impact the rates at which third party payors are willing to pay the healthcare providers with whom we contract to provide imaging services, we are indirectly
impacted by such fee schedules. However, if we were to negotiate direct payment arrangements with third party payors in the future, we would be directly impacted by such schedules. In addition, there is no guarantee that Medicare, state Medicaid
programs, or commercial third party payors will continue to cover professional radiology services. Any reduction or elimination in coverage for our services could adversely impact our business.

Our business could be materially affected if a U.S. Department of Health & Human Services Office of Inspector General study results in a
recommendation that Medicare only pay for reads performed contemporaneously in an emergency room setting.

In its Fiscal Year 2008
Work Plan, the U.S. Department of Health & Human Services Office of Inspector General, or HHS-OIG, indicated that it would conduct a study and issue a report assessing the appropriateness of Medicare billings for diagnostic tests performed
in hospital emergency rooms. Part of the assessment will include a determination as to whether the tests were read contemporaneously with the patients treatment. It is possible that, in the final report, the HHS-OIG could recommend to CMS that
it change its reimbursement rules to clearly indicate that CMS will only pay for reads performed contemporaneously with a patients treatment by a physician located within the United States. If CMS were to adopt this recommendation, final reads
would no longer be eligible for reimbursement if performed by a physician other than the one who performed the preliminary read. In turn, if our customers were no longer able to be reimbursed for certain final reads, our customers may seek
alternative arrangements for the performance of their preliminary reads, which could adversely impact our business.

Changes in the
healthcare industry or litigation reform could reduce the number of diagnostic radiology procedures ordered by physicians, which could result in a decline in the demand for our services, pricing pressure and decreased revenue.

Changes in the healthcare industry directed at controlling healthcare costs and perceived over-utilization of diagnostic radiology procedures could reduce
the volume of radiological procedures performed. For example, in an effort to contain increasing imaging costs, some managed care organizations and private insurers are instituting pre-authorization policies which require physicians to pre-clear
orders for diagnostic radiology procedures before those procedures can be performed. If pre-clearance protocols are broadly instituted throughout the healthcare industry, the volume of radiological procedures could decrease, resulting in pricing
pressure and declining demand for our services. In addition, it is often alleged that many physicians order diagnostic procedures even when the procedures may have limited clinical utility in large part to establish a record for defense in the event
of a medical liability claim. Changes in tort law could reduce the number of radiological procedures ordered for this purpose and therefore reduce the total number of radiological procedures performed each year, which could harm our operating
results.

We may not have adequate intellectual property rights in our brand, which could limit our ability to enforce such rights.

Our success depends in part upon our ability to market our services under the NightHawk brand. However, we believe that
the term NightHawk cannot be afforded trademark protection as it is a generic term used to describe the provision of off-hours radiology services. Other than DayHawk, we have not secured registrations of our other marks.
Other businesses may have prior rights in the brand names that we market under or in similar names, which could limit or prevent our ability to use these marks, or to prevent others from using similar marks. If we are unable to prevent others from
using our brand names, or if others prohibit us from using them, our revenue could be adversely affected. Even if we are able to protect our intellectual property rights in such brands, we could incur significant costs in doing so.



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Any failure to protect our intellectual property rights in our workflow technology could impair its
value and our competitive advantage.

We rely heavily on our proprietary workflow technology to distribute radiological images to
the appropriately licensed and privileged radiologist best able to provide the necessary clinical insight in the least amount of turnaround time. If we fail to protect our intellectual property rights adequately, our competitors may gain access to
our technology, and our business may be harmed. We currently do not hold any patents with respect to our technology. Although we have filed an application for a patent covering our workflow technology, we may be unable to obtain patent protection
for this technology. In addition, any patents we may obtain may be challenged by third parties. Accordingly, despite our efforts, we may be unable to prevent third parties from using or misappropriating our intellectual property.

We may in the future become subject to intellectual property rights claims, which could harm our business and operating results.

The information technology industry is characterized by the existence of a large number of patents, trademarks and copyrights and
by frequent litigation based on allegations of infringement or other violations of intellectual property rights. As an example, we are aware that on July 31, 2007, Merge eMed, Inc., or Merge, filed a complaint against another teleradiology
provider, Virtual Radiologic Corporation, or VRC, alleging that VRC has infringed on certain of Merges patents relating to teleradiology. In connection with that litigation, VRC has filed a Request for Reexamination with the U.S. Patent and
Trademark Office, or US PTO, which asks the US PTO to re-examine the validity of the patents at issue. While we are not currently a party to any litigation, if Merge or another third party asserts that our technology violates that third-partys
proprietary rights, or if a court holds that our technology violates such rights, we may be required to re-engineer our technology, obtain licenses from third parties to continue using our technology without substantial re-engineering or remove the
infringing functionality or feature. In addition, we may incur substantial costs defending any such claim. We may also become subject to damage awards, which could cause us to incur additional losses and harm our financial position.

Monitoring potential infringement of and defending or asserting our intellectual property rights may entail significant expense. We may initiate claims
or litigation against third parties for infringement of our proprietary rights or to establish the validity of our proprietary rights. Any litigation, whether or not it is resolved in our favor, could result in significant expense to us and divert
the efforts of our technical and management personnel.

We are dependent on our management team, and the loss of any key member of
this team may prevent us from implementing our business plan in a timely manner.

Our success depends largely upon the continued
services of our executive officers, particularly Dr. Paul Berger, our Chief Executive Officer and Chairman of the Board. The loss of Dr. Berger, Tim Murnane, our Chief Operating Officer, or Jon D. Berger, our Senior Vice President of
Strategy and Business Development could have a material adverse effect on our business, financial condition, results of operations and the trading price of our common stock.

For example, in February 2008, we announced the resignations of our president and chief operating officer and our chief financial officer. We may not be
able to effectively recruit executives to fill these positions and, even if we are successful, integrating these new executives may prove difficult and time-consuming. Each of our executives is employed on an at-will basis. The search
for replacements for any of our executives could be time consuming and could distract our management team from the day-to-day operations of our business.

If we fail to implement and maintain an effective system of internal controls, we may not be able to report our financial results in an accurate or timely manner, prevent fraud or comply with Section 404 of
the Sarbanes-Oxley Act of 2002, which may harm our business and affect the trading price of our stock.

Effective internal controls
are necessary for us to provide reliable financial reports in a timely manner and to prevent fraud. Historically, we have had limited accounting personnel and other resources with which to design and implement our internal controls and procedures.
As a result, in their audit of our fiscal 2004 financial statements, our auditors identified in their report to our audit committee material weaknesses relating to the adequacy and competency of our financial reporting personnel. Following receipt
of our auditors report, we consulted with our audit committee and undertook remedial steps to address these deficiencies, including hiring additional staff and training our new and existing staff. Although our auditors did not identify
material weaknesses in our internal controls in connection with their audit of our financial statements as of and for the years ended December 31, 2007, 2006 or 2005, we cannot assure you that we will maintain an effective system of internal
controls in the future. Beginning with our annual report on Form 10-K for our fiscal year ended December 31, 2007, we are required to comply with the requirement of Section 404 of the Sarbanes-Oxley Act of 2002 to include in each of our
annual reports an assessment by our management of the effectiveness of our internal controls over financial reporting and a report of our independent registered public accounting firm addressing these assessments. If we fail to adequately staff and



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train our accounting and finance personnel to meet the demands of operating as a public company, including the requirements of the Sarbanes-Oxley Act of
2002, or fail to maintain adequate internal controls, any resulting material weakness in internal controls could prevent our management from concluding the internal controls are effective and impair our ability to prevent material misstatements in
our financial statements, which could cause our business to suffer. In addition, investors perceptions that our internal controls are inadequate or that we are unable to produce accurate financial statements in a timely manner or prevent fraud
may negatively affect the trading price of our stock or result in stockholder litigation.

We may be unable to enforce non-compete
agreements with our affiliated radiologists.

Our independent contractor agreements with our affiliated radiologists typically
provide that the radiologists may not compete with us for a period of time, typically one year, after the agreements terminate. These covenants not to compete are enforceable to varying degrees from jurisdiction to jurisdiction. In most
jurisdictions, a covenant not to compete will be enforced only to the extent that it is necessary to protect the legitimate business interest of the party seeking enforcement, that it does not unreasonably restrain the party against whom enforcement
is sought and that it is not contrary to the public interest. This determination is made based upon all the facts and circumstances of the specific case at the time enforcement is sought. It is unclear whether our interests will be viewed by courts
as the type of protected business interest that would permit us to enforce a non-competition covenant against the radiologists. A determination that these provisions are not enforceable could have a material adverse effect on us.

Enforcement of state and federal anti-kickback laws may adversely affect our business, financial condition or operations.

Various federal and state laws govern financial arrangements among healthcare providers. The federal anti-kickback law prohibits the knowing and willful
offer, payment, solicitation or receipt of any form of remuneration in return for, or with the purpose to induce, the referral of Medicare, Medicaid, or other federal healthcare program patients, or in return for, or with the purpose to induce, the
purchase, lease or order of items or services that are covered by Medicare, Medicaid, or other federal healthcare programs. Similarly, many state laws prohibit the solicitation, payment or receipt of remuneration in return for, or to induce the
referral of patients in private as well as government programs. Violation of these anti-kickback laws may result in substantial civil or criminal penalties for individuals or entities and/or exclusion from participating in federal or state
healthcare programs. If we are excluded from federal or state healthcare programs, our customers who participate in those programs would not be permitted to continue doing business with us. We believe that we are operating in compliance with
applicable law and believe that our arrangements with providers would not be found to violate the anti-kickback laws. However, these laws could be interpreted in a manner inconsistent with our operations.

Because our customers submit claims to the Medicare program based on the services we provide, it is possible that a lawsuit could be brought
against us or our customers under the federal False Claims Act, and the outcome of any such lawsuit could have a material adverse effect on our business, financial condition and operations.

The Federal False Claims Act provides, in part, that the federal government may bring a lawsuit against any person whom it believes has knowingly
presented, or caused to be presented, a false or fraudulent request for payment from the federal government, or who has made a false statement or used a false record to get a claim approved. The government has taken the position that claims
presented in violation of the federal anti-kickback law may be considered a violation of the Federal False Claims Act. The Federal False Claims Act further provides that a lawsuit brought under that act may be initiated in the name of the United
States by an individual who was the original source of the allegations, known as the relator. Actions brought under the Federal False Claims Act are sealed by the court at the time of filing. The only parties privy to the information contained in
the complaint are the relator, the federal government and the court. Therefore, it is possible that lawsuits have been filed against us that we are unaware of or which we have been ordered by the court not to discuss until the court lifts the seal
from the case. Penalties include fines ranging from $5,500 to $11,000 for each false claim, plus three times the amount of damages that the federal government sustained because of the act of that person. We believe that we are operating in
compliance with the Medicare rules and regulations, and thus, the Federal False Claims Act. However, if we were found to have violated certain rules and regulations and, as a result, submitted or caused our customers to submit allegedly false
claims, any sanctions imposed under the Federal False Claims Act could result in substantial fines and penalties or exclusion from participation in federal and state healthcare programs which could have a material adverse effect on our business and
financial condition.

Federal regulatory and law enforcement authorities have recently increased enforcement activities with respect to
Medicare and Medicaid fraud and abuse regulations and other reimbursement laws and regulations, including laws and regulations that govern our activities and the activities of teleradiologists. These increased enforcement activities may have a
direct or indirect adverse affect on our business, financial condition and results of operations.



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Additionally, some state statutes contain prohibitions similar to and possibly even more restrictive than
the Federal False Claims Act. These state laws may also empower state administrators to adopt regulations restricting financial relationships or payment arrangements involving healthcare providers under which a person benefits financially by
referring a patient to another person. We believe that we are operating in compliance with these laws. However, if we are found to have violated such laws, our business, results of operations and financial condition would be harmed.

Changes in the governmental interpretation or enforcement of the federal prohibition on physician self-referral may adversely affect our business,
financial conditions or operations.

The federal Stark Law prohibits a physician from referring Medicare or Medicaid
patients for the provision of designated health services by an entity in which the physician has an investment interest or with which the physician has entered into a compensation arrangement. Designated health services include both the
professional and technical components of diagnostic tests using X-rays, ultrasound or other imaging services, CT, MRI, radiation therapy and diagnostic mammography services. Violation of the Stark Law may result in substantial civil penalties and/or
exclusion from participation in federal health care programs for both the referring physicians and any entities that submit technical and/or professional component claims for any diagnostic tests ordered by those referring physicians. We believe
that we have structured our arrangements between our affiliated radiologists and our customers in a manner that complies with applicable law. However, this law could be interpreted in a manner inconsistent with our arrangements.

The trading price of our common stock has been volatile and will likely remain volatile.

The trading prices of many newly publicly-traded companies are highly volatile, particularly companies such as ours that have limited operating histories.
Since our initial public offering in February 2006, the trading price of our common stock has been subject to wide fluctuations. Factors that will continue to affect the trading price of our common stock include:



| |  |  | variations in our operating results,
| | - |  | ------------------------------------



| |  |  | announcements of new services, strategic alliances or significant agreements by us or by our competitors,
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | recruitment or departure of key personnel,
| | - |  | ------------------------------------------



| |  |  | changes in the estimates of our operating results or changes in recommendations by any securities analysts that follow our common stock, and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | market conditions in our industry, the industries of our customers and the economy as a whole.
| | - |  | ----------------------------------------------------------------------------------------------

In addition, if the market for healthcare stocks or healthcare services or the stock market in general experiences loss of investor confidence, the
trading price of our common stock could decline for reasons unrelated to our business, operating results or financial condition. The trading price of our common stock might also decline in reaction to events that affect other companies in our
industry even if these events do not directly affect us.

If securities analysts do not publish research or reports about our
business, or if they downgrade our stock, the price of our stock could decline.

The trading market for our common stock will rely
in part on the availability of research and reports that third-party industry or financial analysts publish about us. There are many large, publicly-traded companies active in the healthcare services industry, which may mean it will be less likely
that we receive widespread analyst coverage. Furthermore, if one or more of the analysts who do cover us downgrade our stock, our stock price would likely decline. If one or more of these analysts cease coverage of our company, we could lose
visibility in the market, which in turn could cause our stock price to decline.

The concentration of our capital stock ownership
with insiders will likely limit your ability to influence corporate matters.

Our executive officers, directors, current five
percent or greater stockholders and affiliated entities collectively own a relatively large percentage of the outstanding shares of our common stock. As a result, these stockholders, acting together, will have control over most matters that require
approval by our stockholders, including the election of directors and approval of significant corporate transactions. Corporate action might be taken even if other stockholders oppose them. This concentration of ownership might also have the effect
of delaying or preventing a change of control of our company that other stockholders may view as beneficial.

We are exposed to
foreign currency exchange risks, which could harm our business and operating results.



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We maintain significant operations in Australia and Switzerland, and are exposed to adverse changes in
exchange rates associated with the expenses of our operations in these countries. However, we do not currently engage in any hedging transactions to mitigate these risks. Although from time to time we review our foreign currency exposure and
evaluate whether we should enter into hedging transactions, we may not adequately hedge against any future volatility in currency exchange rates and, if we engage in hedging transactions, the transactions will be based on forecasts which later may
prove to be inaccurate. Any failure to hedge successfully or anticipate currency risks properly could adversely affect our operating results.

In addition, a third of our affiliated radiologists live in Australia and Switzerland, but receive compensation from us in U.S. dollars. Any relative weakness in the U.S. dollar compared to the Australian dollar or Swiss franc may increase
the cost of living for our affiliated radiologists and make it less attractive for our affiliated radiologists to sign or renew their service contracts with us.

Provisions in our certificate of incorporation and bylaws and Delaware law might discourage, delay or prevent a change of control of our company or changes in our management and, therefore, depress the trading
price of our common stock.

Our certificate of incorporation and bylaws contain provisions that could depress the trading price of
our common stock by acting to discourage, delay or prevent a change in control of our company or changes in our management that the stockholders of our company may deem advantageous. These provisions:



| |  |  | establish a classified board of directors so that not all members of our board are elected at one time,
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | provide that directors may only be removed for cause,
| | - |  | -------------------------------------------------------



| |  |  | authorize the issuance of blank check preferred stock that our board could issue to increase the number of outstanding shares and to discourage a
takeover attempt,
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | eliminate the ability of our stockholders to call special meetings of stockholders,
| | - |  | -----------------------------------------------------------------------------------



| |  |  | prohibit stockholder action by written consent, which has the effect of requiring all stockholder actions to be taken at a meeting of stockholders,
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | provide that the board of directors is expressly authorized to make, alter or repeal our bylaws, and
| | - |  | ----------------------------------------------------------------------------------------------------



| |  |  | establish advance notice requirements for nominations for election to our board or for proposing matters that can be acted upon by stockholders at stockholder
meetings.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------

In addition, Section 203 of the Delaware General Corporation Law may discourage, delay or prevent a change in control of
our company.



|ITEM 2. | Unregistered Sales of Equity Securities and Use of Proceeds
|------- | -----------------------------------------------------------

On March 4, 2008, 181,971 shares of our common stock were issued as consideration to stockholders of American Teleradiology Nighthawks, Inc. (ATN) as of the acquisition date of September 30, 2005. The additional
consideration was calculated in accordance with the provisions of the purchase agreement. The issuance was made in reliance upon the exemption afforded by the provisions of Section 4(2) of the Securities Act of 1933, as amended. See additional
discussion in Note 2 to Condensed Consolidated Financial Statements.



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|ITEM 6. | Exhibits
|------- | --------



|               |  |                                                                                                                                                                           
|-------------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit Number |  | Description                                                                                                                                                               
|               | 
|10.42(2)       |  | Employment Agreement dated February 19, 2008 between the Company and Mr. Tim Murnane                                                                                      
|               | 
|10.43(1)       |  | Letter Agreement between the Company and Mr. David Engert dated April 23, 2008                                                                                            
|               | 
|31.1           |  | Certification of Principal Executive Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
|               | 
|31.2           |  | Certification of Principal Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
|               | 
|32.1           |  | Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                    
|               | 
|32.2           |  | Certification of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                    



|(1) | Incorporated by reference to Form 8-K (No. 000-51786) filed by the registrant on April 30, 2008.
|--- | ------------------------------------------------------------------------------------------------

|(2) | Incorporated by reference to Form 8-K (No. 000-51786) filed by the registrant on February 25, 2008.
|--- | ---------------------------------------------------------------------------------------------------



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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant
has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



|                  |  |  |  |                                    |  |                      |  |                                                  
|----------------- |  |  |  | ---------------------------------- |  | -------------------- |  | -------------------------------------------------
|                  |  |  |  | NIGHTHAWK RADIOLOGY HOLDINGS, INC.
|                  |  |  | 
|Date: May 9, 2008 |  |  |  | By:                                |  | /s/    GLENN R. COLE
|                  |  |  |  |                                    |  |                      |  | Glenn R. Cole                                    
|                  |  |  |  |                                    |  |                      |  | Senior Vice President and Chief Financial Officer
|                  |  |  |  |                                    |  |                      |  | (Principal Financial Officer)                    



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