**Exhibit 21**

 

SUBSIDIARIES OF INSIGHT HEALTH SERVICES HOLDINGS CORP.

 
| **NAME OF SUBSIDIARY**                            |   | **STATE OF ORGANIZATION** |
|---------------------------------------------------|--------|---------------------------|
|                                              |   |                      |
| Asheville Mobile MRI Services, LLC                |   |                      | North Carolina |
| Berwyn Magnetic Resonance Center, LLC             |   |                      | Illinois |
| Comprehensive Medical Imaging, Inc.               |   |                      | Delaware |
| Comprehensive Medical Imaging Centers, Inc.       |   |                      | Delaware |
| Comprehensive Medical Imaging-Bakersfield, Inc.   |   |                      | Delaware |
| Comprehensive Medical Imaging-Biltmore, Inc.      |   |                      | Delaware |
| Comprehensive Medical Imaging-Fairfax, Inc.       |   |                      | Delaware |
| Comprehensive Medical Imaging-Fremont, Inc.       |   |                      | Delaware |
| Comprehensive Medical Imaging-San Francisco, Inc. |   |                      | Delaware |
| Comprehensive OPEN MRI-Carmichael/Folsom, LLC     |   |                      | California |
| Comprehensive OPEN MRI-East Mesa, Inc.            |   |                      | Delaware |
| Comprehensive OPEN MRI-Garland, Inc               |   |                      | Delaware |
| Connecticut Lithotripsy, LLC                      |   |                      | Connecticut |
| Daniel Freeman MRI, LLC                           |   |                      | California |
| Diagnostic Solutions Corp.                        |   |                      | Delaware |
| Dublin Diagnostic Imaging, LLC                    |   |                      | Ohio |
| Encinitas Imaging Center, LLC                     |   |                      | California |
| Garfield Imaging Center, Ltd.                     |   |                      | California |
| Granada Hills Open MRI, LLC                       |   |                      | California |
| IMI of Arlington, Inc.                            |   |                      | Delaware |
| IMI of Kansas City, Inc.                          |   |                      | Delaware |
| InSight Health Corp.                              |   |                      | Delaware |
| InSight Health Services Corp.                     |   |                      | Delaware |
| InSight Imaging Services Corp.                    |   |                      | Delaware |
| InSight-Premier Health, LLC                       |   |                      | Maine |
| InSight ProScan, LLC                              |   |                      | Ohio |
| Jefferson MRI                                     |   |                      | Texas |
| Jefferson MRI-Bala                                |   |                      | Texas |
| Kessler Imaging Associates, LLC                   |   |                      | New Jersey |
| Lockport MRI, LLC                                 |   |                      | New York |
| Los Gatos Imaging Center                          |   |                      | Texas |
| Maxum Health Corp.                                |   |                      | Delaware |
| Maxum Health Services Corp.                       |   |                      | Delaware |
| Maxum Health Services of Dallas, Inc.             |   |                      | Texas |
| Maxum Health Services of North Texas, Inc.        |   |                      | Texas |
| Mesa MRI                                          |   |                      | Texas |
| Mountain View MRI                                 |   |                      | Texas |
| MRI Associates, L.P.                              |   |                      | Indiana |
| NDDC, Inc.                                        |   |                      | Texas |
| Open MRI, Inc.                                    |   |                      | Delaware |
| Orange County Regional PET Center-Irvine, LLC     |   |                      | California |
| Parkway Imaging Center, LLC                       |   |                      | Nevada |
| Phoenix Regional PET Center-Thunderbird, LLC      |   |                      | Arizona |
| Radiosurgery Centers, Inc.                        |   |                      | Delaware |
| Rainbow Imaging, LLC                              |   |                      | New York |
| San Fernando Valley Regional PET Center, LLC      |   |                      | California |
| Signal Medical Services, Inc.                     |   |                      | Delaware |
| St. John’s Regional Imaging Center, LLC      |   |                      | California |
| Sun Coast Imaging Center, LLC                     |   |                      | Florida |
| Syncor Diagnostics Bakersfield, LLC               |   |                      | California |
| Syncor Diagnostics Sacramento, LLC                |   |                      | California |
| TME Arizona, Inc                                  |   |                      | Texas |
| Valencia MRI, LLC                                 |   |                      | California |
| Wilkes-Barre Imaging, LLC                         |   |                      | Pennsylvania |
| Woodbridge MRI                                    |   |                      | Texas |

 

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