<PAGE>
                                                                    Exhibit 10.7


                     INSIGHT HEALTH SERVICES HOLDINGS CORP.
                             2001 STOCK OPTION PLAN
                             STOCK OPTION AGREEMENT


            AGREEMENT is dated as of June 29, 2001 between InSight Health
Services Holdings Corp., a Delaware corporation ("Company"), and Steven T.
Plochocki ("Optionee"). This Agreement shall become effective as of the
Effective Time.

            The stockholders and the Board of Directors of the Company ("Board")
have adopted the InSight Health Services Holdings Corp. 2001 Stock Option Plan
("Plan") of the Company for the purpose of advancing the interests of the
Company by providing certain individuals with an opportunity to develop a
proprietary interest in the Company, which will thereby create strong
performance incentives for such individuals to maximize the growth and success
of the Company and its subsidiaries and will encourage such individuals to
remain in the employ of the Company or any of its subsidiaries.

            The Optionee is a full time employee of the Company or its
subsidiaries, and this Agreement is executed pursuant to, and is intended to
carry out the purposes of, the Plan in connection with the grant by the Company
of a stock option to the Optionee.

            NOW, THEREFORE, it is hereby agreed as follows:

            1. Grant of Option. Subject to and upon the terms and conditions set
forth in this Agreement and the Plan, the Company hereby grants to the Optionee,
as of the Effective Time, a stock option ("Option") to purchase up to 52,500
shares ("Option Shares") of the common stock, par value $0.001 per share, of the
Company ("Common Stock") from time to time during the Option Period at the price
of $8.37 per share ("Option Price").

            2. Option Period. The Option shall be exercisable only during the
Option Period. In addition, upon the Expiration Date, the Option shall cease to
be exercisable and have no further force or effect whatsoever.

            3. Vesting and Exercisability. The Option shall be vested and
exercisable as of the Effective Time.

            4. Termination of Employment. Upon termination of the Optionee's
employment with the Company, the Option granted herein shall be treated in
accordance with the Plan.

            5. Timing and Method of Exercise. In order to exercise the Option
with respect to all or any part of the Option Shares for which the Option is at
the time exercisable, the Optionee (or in the case of exercise after the
Optionee's death, the Optionee's executor, administrator, heir or legatee, as
the case may be) must comply with the provisions of Section 8 of the Plan. A
form of exercise notice is attached hereto as Exhibit A.
<PAGE>
            6. Termination of Existing Options. Immediately prior to the
Effective Time, the stock options set forth on Exhibit B granted to the Optionee
pursuant to any of the Company's stock option plans and any stock option
agreement entered into in connection therewith shall be terminated in their
entirety and be of no further force and effect. In addition, the Optionee
irrevocably waives any and all rights and benefits the Optionee has thereunder.

            7. Stockholders Agreement. Not later than the Effective Time, the
Optionee hereby agrees to execute the stockholders agreement by and among the
Company and the parties named therein (the "Stockholders Agreement"), and
pursuant thereto, the Option and the Common Stock underlying the Option shall be
subject to the terms of the Stockholders Agreement.

            8. Successors and Assigns. The provisions of this Agreement shall
inure to the benefit of, and be binding upon, the successors, administrators,
heirs, devisees, legal representatives and permitted assigns, in each case,
subject to the Stockholders Agreement, of the Optionee and the successors and
assigns of the Company.

            9. Liability of the Company. The inability of the Company, despite
its best efforts, to obtain approval from any regulatory body having authority
deemed by the Company to be necessary to the lawful issuance and sale of any
Common Stock pursuant to the Option shall relieve the Company of any liability
in respect of the non-issuance or sale of the Common Stock as to which such
approval shall not have been obtained.

            10. Construction. This Agreement and the Option evidenced hereby are
made and granted pursuant to the Plan and are in all respects limited by and
subject to the express terms and provisions of the Plan.

            11. Governing Law. The interpretation, performance and enforcement
of this Agreement shall be governed by the laws of the State of Delaware.

            12. Warranties and Obligations of the Optionee.

                  (a) The Optionee represents, warrants and agrees that the
Optionee will acquire and hold the Option Shares for the Optionee's own account
for investment and not with the view to the resale or distribution thereof,
except for resales or distributions in accordance with federal and state
securities laws, and that the Optionee will not, at any time or times, directly
or indirectly, offer, sell, distribute, pledge or otherwise grant a security
interest in or otherwise dispose of or transfer all, any portion of or any
interest in, any Option Shares (or solicit an offer to buy, take in pledge or
otherwise acquire or receive, all or any portion thereof), except pursuant to
either (i) a Registration Statement on an appropriate form under the Securities
Act of 1933, as amended ("1933 Act"), which Registration Statement has become
effective and is current with respect to the shares being offered or sold, or
(ii) a specific exemption from the registration requirements of the 1933 Act,
the availability of which exemption shall be


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<PAGE>
the subject matter of an opinion of counsel reasonably acceptable to the Company
that no registration under the 1933 Act is required with respect to such offer,
sale, distribution, pledge, grant or other disposition or transfer.

                  (b) The Optionee acknowledges that the Optionee understands
that (i) the Option has been granted and the shares to be sold to the Optionee
upon exercise of the Option will be sold to the Optionee pursuant to an
exemption from the registration requirements in the 1933 Act until such time as
the Company shall file a Registration Statement under the 1933 Act which has
become effective and is current with respect to the shares being offered or sold
and in this connection the Company is relying in part on the representations set
forth in this Agreement; (ii) such shares must be held indefinitely unless they
are registered or an exemption from registration becomes available under the
1933 Act and the securities laws of any state; (iii) the Company is under no
obligation to register such shares or to comply with any exemption from such
registration, including those portions of Rule 144 under the 1933 Act to be
complied with by the Company; (iv) if Rule 144 is available for sales of such
shares, and there is no assurance that the Optionee will ever be able to sell
under Rule 144, such sales in reliance upon Rule 144 may be made only after the
shares have been held for the requisite holding period and then only in limited
amounts in accordance with the conditions of that Rule, all of which must be
met; and (v) the Optionee must, therefore, continue to bear the economic risks
of the investment in such shares for an indefinite period of time after the
exercise of the Option.

                  (c) The Optionee acknowledges that the Optionee has had the
opportunity to ask questions of, and receive answers from, the officers and
representatives of the Company concerning all material information concerning
the Company and the terms and conditions of the transactions in which the
Optionee is acquiring the Option and may subsequently acquire Option Shares. The
Optionee further acknowledges that the Optionee understands that the Company may
use the proceeds from the exercise of the Option for general corporate purposes.

                  (d) Immediately prior to the exercise of all or any portion of
the Option, the Optionee shall deliver to the Company a signed statement, in a
form satisfactory to the Company, confirming that each of the representations,
warranties, acknowledgments and agreements contained in this Section is true as
to the Optionee as of the date of such exercise.

                  (e) The Optionee understands that all certificates
representing shares transferred pursuant to this Agreement, unless made pursuant
to an appropriate Registration Statement under the 1933 Act, will bear the
following restrictive legend:

            "The shares represented by this certificate have not
            been registered under the Securities Act of 1933, as
            amended, and may not be transferred or hypothecated
            without prior registration under said Act or an
            exemption therefrom established to the satisfaction of
            the issuer."


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<PAGE>
                  (f) If the legal counsel of the Company, at the request of the
Company, advises it that registration under the 1933 Act of the shares
deliverable upon the exercise of the Option is required prior to delivery
thereof, or that listing of such shares on any exchange is required prior to
delivery thereof, the Company shall not be required to issue or deliver such
shares unless and until such legal counsel shall advise that such registration
and/or listing has been completed and is then effective, or is not required.

            13. Severability. In the event that any provision of this Agreement
is found to be invalid or otherwise unenforceable under any applicable law, such
invalidity or unenforceability shall not be construed as rendering any other
provisions contained herein invalid or unenforceable, and all such other
provisions shall be given full force and effect to the same extent as though the
invalid and unenforceable provision was not contained herein.

            14. Definitions. Capitalized terms used but not defined herein shall
have the meanings ascribed to them in the Plan. For purposes of interpreting
this Agreement, the following definitions shall also apply:

                  (a)   "Effective Time" shall have the meaning set forth in the
Agreement and Plan of Merger, by and among InSight Health Services Holdings
Corp., JWCH Merger Corp. and InSight Health Services Corp.

                  (b) "Expiration Date" means, unless earlier terminated
pursuant to the terms of this Agreement or the Plan, the day immediately
preceding the tenth anniversary of the Effective Time.

                  (c) "Option Period" means the period commencing at the
Effective Time and, unless earlier terminated in accordance with Section 4,
ending on the close of business on the Expiration Date.


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<PAGE>
            IN WITNESS WHEREOF, the Company has caused this Agreement to be
executed in duplicate on its behalf and the Optionee has also executed this
Agreement in duplicate, all as of the date first above written.


                                    INSIGHT HEALTH SERVICES  HOLDINGS CORP.


                                    By:/s/ Mark J. Tricolli
                                       ---------------------------------
                                    Name:  Mark J. Tricolli
                                    Title: Vice President & Secretary




                                    OPTIONEE


                                    /s/ Steven T. Plochocki
                                    ------------------------------
                                    Steven T. Plochocki


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<PAGE>
                                   EXHIBIT A



                                       6
<PAGE>
                      Form of Stock Option Exercise Notice


Optionee Information:

Name:__________________            Social Security Number: ____ - ____ - _____


Address:______________________     Employee Number:        __________________

        ______________________


Option Information:

Date of Grant of Option: __________________

Exercise Price per Share: $ 8.37

Total number of shares of Common Stock of the

Company covered by the Option: _________ shares


Exercise Information:

Number of shares of Common Stock of the Company for which Option is

being exercised now:

            _______  (hereinafter referred to as "Purchased Shares")

Form of payment enclosed (CHECK ALL THAT APPLY):

:     Check for $ _____ made payable to InSight Health Services Holdings Corp.

:     Certificate(s) for ___ shares of Common Stock of the Company that I have
      owned for at least six months. (These shares will be valued as of the date
      when this notice is received by the Company.)

:     Attestation Form covering _____ shares of Common Stock of the Company
      (These shares will be valued as of the date when this notice is received
      by the Company.)




Names in which the Purchased Shares should be registered (YOU MUST CHECK ONE):


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<PAGE>
:     In my name only

:     In the name of my spouse and myself as joint tenants with the right of
      survivorship. My spouse's name is: ___________________. I agree to seek
      the consent of my spouse to the extent required by the Company to enforce
      the foregoing.

The certificate(s) of the Purchased Shares shall be sent to the following
address:

      ____________________

      ____________________

      ____________________


I hereby acknowledge that I am acquiring the Purchased Shares subject to all
terms and conditions of the InSight Health Services Holdings Corp. 2001 Stock
Option Plan Stock Option Agreement dated June ___, 2001.




                              _____________, _____________
                                  Place             Date



                              ____________________________
                                  Name:



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<PAGE>
                                    EXHIBIT B



<TABLE>
<CAPTION>
       Plan              Number of Options Terminated         Option Price
       ----              ----------------------------         ------------
<S>                      <C>                                  <C>
    InSight Health
  Services Corp. 1999
   Stock Option Plan                52,500                        $8.37
</TABLE>











                                                                      Plochocki


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