STOCKHOLDERS AGREEMENT

                                    EX- 10.27

     THIS STOCKHOLDERS AGREEMENT (this "Agreement") is made as March 22, 1996 by
and among  Diagnostic  Imaging  Services,  Inc.,  a  Delaware  corporation  (the
"Company "), Primedex Health Systems, Inc., a New York corporation (" PHS ") and
Norman Hames, an individual ("NH") (collectively, the "Shareholders").

     WHEREAS, PHS and NH are holders of shares of common stock ("Common Stock")
 of the Company;

     WHEREAS,  PHS and NH desire to secure the  election of the  nominees of PHS
and NH to the Board of  Directors  of the  Company as well as assure the Company
that its transactions will always be in the best interest of the Company; and

     WHEREAS,   PHS  has   entered   into  a   Securities   Purchase   Agreement
("Agreement"),  dated as of March 22,  1996,  with tie Company,  and PHS,  under
which PHS will invest a  substantial  amount in the Company;  and a condition of
closing the Securities  Purchase  Agreement is the execution and delivery by the
Shareholders and the Company of this Agreement.

     NOW,  THEREFORE,  in  consideration  of the  foregoing and the promises and
covenants contained herein, the sufficiency of which is hereby acknowledged, the
parties agree as follows:

     1.  VOTING AGREEMENT REGARDING SHARES.

         1.1 Agreement to Vote. Each Shareholder  agrees on behalf of himself or
itself and any of the  following  persons to whom the  Shareholder  may transfer
shares of Common Stock owned or controlled by such Shareholder ("Shares"): (a) a
member  of  his  or  her  immediate  family;  (b) a  trust  established  by  the
Shareholder for the benefit of the Shareholder or his or her immediate family by
gift or inheritance; or (c) a person that directly or indirectly, through one or
more  intermediaries,  controls or is controlled  by, or is under common control
with, the Shareholder (individually,  an "Affiliated Transferee") to hold all of
the  Shares  now held or  subsequently  acquired  registered  in his or its name
subject to, and to vote the Shares in accordance  with,  the  provisions of this
Agreement.

         1.2 Board of Directors.  Each Shareholder  shall vote his or its Shares
(or shall  consent  pursuant  to an action by written  consent of the  Company's
shareholders)  so as to elect a four person board of which two nominees shall be
designated  by  NH  and  two  nominees  by  PHS,  their  respective  successors,
affiliates,  or  assigns  shall  also be so bound;  and,  in the event  that any
designated  director  shall not  complete his term of office as a director and a
successor  director is to be  elected,  each  Shareholder  shall vote his or its
Shares to elect as such  successor  director a nominee  designated  by the party
whose appointed  director's term is uncompleted,  its successors,  affiliates or
assigns.

         1.3 Removal. On all matters relating to the removal of directors of the
Company,  each  Shareholder  shall  vote his or its  Shares  (or  shall  consent
pursuant  to an action by written  consent  of the  Company's  shareholders)  to
ensure that no director  of the Company may be removed  from the Board,  with or
without  cause,  except upon the prior written  authorization  or request of the
appropriate appointing Shareholder.

         1.4 Conflicting  Charter or By-Law  Provisions.  Each Shareholder shall
vote his or her  Shares  (or shall  consent  pursuant  to an  action by  written
consent  of the  Company's  shareholders),  and  shall  take  all  other  action
necessary,  to ensure that the Certificate of  incorporation  and By-Laws of the
Company  facilitate  and do not at any time conflict with the provisions of this
Agreement.











         1.5 Approval of Transactions.  Each  Shareholder  shall vote his or its
Shares  (or  shall  consent  pursuant  to an action by  written  consent  of the
Company's  shareholders)  on  any  issue  put  to  the  vote  of  the  Company's
shareholders  in the  manner  which  the  Board  of  Directors  of  the  Company
recommends.

         1.6 Rights  Assignable.  NH and PHS may assign their respective  rights
and benefits under this  Agreement to any person that acquires  shares of Common
Stock from them.

         1.7 Certain Types of Issue. So long as NH and Howard Berger, M.D. shall
serve as directors of the Company, neither shall take nor recommend any material
action involving the Company which is not approved by the other.

     2.  CONDITION PRECEDENT; TERMINATION.

         2.1 Condition Precedent to Obligations. The obligation of each party to
this Agreement to perform its obligations  under this Agreement shall be subject
to the  consummation  and  performance of the  transactions  contemplated by the
Agreement.

         2.2  Termination  of Rights  regarding  the Company.  The rights of the
Shareholders  under this Agreement shall terminate upon the earliest to occur of
(i) with respect any individual Shareholder,  the date on which such Shareholder
or any  Affiliated  Transferee no longer owns more than five percent (5%) of the
outstanding Shares, or (ii) the occurrence of the merger or consolidation of the
Company into, or the sale of all or substantially all of the Company's assets to
another entity.

     3.  LEGEND.

         3.1  Legend.   Each  certificate   representing  Shares  owned  by  any
Shareholder or transferred to any Affiliated  Transferee  shall be endorsed with
the following legend:

         "THE  VOTING OF THE  SECURITIES  REPRESENTED  BY THIS  CERTIFICATE  ARE
         SUBJECT TO THE TERMS AND CONDITIONS OF A STOCKHOLDERS  AGREEMENT BY AND
         AMONG CERTAIN HOLDERS OF COMMON STOCK OF THE CORPORATION.  BY ACCEPTING
         ANY INTEREST IN SUCH  SECURITIES  THE PERSON  ACCEPTING  SUCH  INTEREST
         SHALL BE DEEMED TO AND SHALL BECOME BOUND BY ALL THE PROVISIONS OF SUCH
         STOCKHOLDERS' AGREEMENT.  COPIES OF SUCH STOCKHOLDERS' AGREEMENT MAY BE
         OBTAINED UPON WRITTEN REQUEST OF THE SECRETARY OF THE CORPORATION."

         3.2 Legend  Removal.  The legend  referred  to in Section  3.1 shall be
removed  (i) from  every  certificate  upon  termination  of this  Agreement  in
accordance  with the provisions of Section 2 above or (ii) from any  certificate
representing  Shares owned by any  Shareholder  or transferred to any Affiliated
Transferee  that are  transferred  to a person  other than a  signatory  to this
Agreement.

         3.3 Cooperation with Filings.  Each  Shareholder  shall cooperate fully
with the Company with regard to any filings  required  under the  Securities and
Exchange Act of 1934, as amended,  or any other federal or state securities law,
rule  or  regulation,  relative  to  such  Shareholder's  participation  in this
Agreement,  which  cooperation  shall include,  without  limitation,  the prompt
response to written requests for information.  Each Shareholder hereby agrees to
indemnify  and  hold  harmless  the  Company  and  their  respective   officers,
directors,  employees,  shareholders  and agents  from and  against  any and all
losses,  damages, costs and expenses (including attorney's fees and other costs)
and liabilities due or arising out of information such Shareholder shall provide
to the  Company  pursuant  to  this  Section  3.3 but  only if such  information
included an untrue  statement of a material  fact or omitted to state a material
fact  necessary  in order to make the  statements  therein,  in the light of the
circumstances under which they were made, not misleading.



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     4.  MISCELLANEOUS.

         4.1  Representations.  Each of the parties hereto  represents that this
Agreement  has been duly  authorized,  executed and  delivered by such party and
constitutes a legal,  valid and binding  obligation  of such party,  enforceable
against it in accordance with the terms of this Agreement.

         4.2 Specific  Performance.  The parties  hereto agree that  irreparable
damage  would  occur  in the  event  any  provision  of this  Agreement  was not
performed in  accordance  with the terms  hereof,  that money  damages  shall be
inadequate  for such breach,  and that the parties shall be entitled to specific
performance  of the terms  hereof,  in addition to any other remedy at law or in
equity.

         4.3 Amendments  and Waivers.  Any term of this Agreement may be amended
and the  observance  of any such term may be waived  (either  generally  or in a
particular  instance and either  retroactively or  prospectively)  only with the
written consent of the parties hereto.

         4.4 Notices.  All notice and other  communications  provided for herein
shall be in  writing  and  shall be  delivered  by hand,  telecopied  or sent by
overnight,  certified or registered  mail,  return  receipt  requested,  postage
prepaid,  addressed  in the  manner  set  forth on the  signature  pages of this
Agreement  (or to such  other  address  for a party as shall be  specified  in a
notice given in  accordance  with this Section  4.4).  All such notices shall be
conclusively  deemed  to be  received  and shall be  effective,  if sent by hand
delivery or  telecopied,  upon  receipt,  or if sent by  registered or certified
mail, on the fifth day after the day on which such notice is mailed.

         4.5  Benefit;  Successors  and Assigns.  Except as  otherwise  provided
herein,  this Agreement  shall be binding upon and shall inure to the benefit of
the  parties  hereto and their  respective  successors  and  permitted  assigns.
Nothing in this Agreement either express or implied is intended to confer on any
person  other than the  parties  thereto  and their  respective  successors  and
permitted  assigns,  any rights,  remedies or obligations  under or by reason of
this Agreement.

         4.6  Miscellaneous.  This Agreement sets forth the entire agreement and
understanding  among the parties hereto, and supersedes all prior agreements and
understandings  relating to the subject matter hereof. All  representations  and
warranties  contained  herein shall  survive the  execution and delivery of this
Agreement,  regardless of any investigation  made by any party hereto or on such
party's  behalf.  The headings in this  Agreement  are for purposes of reference
only and shall not limit or otherwise affect the meaning hereof.  This Agreement
may be executed in any number of counterparts,  each of which shall be deemed to
be an original, but all of which together shall constitute one instrument.

         4.7  Severability.  If any provisions of this Agreement shall be deemed
invalid  or  unenforceable  pursuant  to a final  determination  of any court of
competent  jurisdiction,  or as a result  of  future  legislative  action,  such
determination  or action shall be  construed  so as not to affect the  validity,
enforceability  or  effect  the other  provisions  of this  Agreement,  and this
Agreement shall be construed as if the invalid or  unenforceable  provision were
not contained  herein,  and the rights and  obligations  of the parties shall be
construed and enforced accordingly.

         4.8 Amendments and Waivers.  Neither this Agreement nor any term hereof
may be  amended,  waived,  discharged  or  terminated  other  than by a  written
instrument signed by the Shareholders.

         4.9  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts, all of which together shall constitute one instrument, and each of
which may be executed by less than all of the parties to this Agreement.

         4.10 Governing Law. The agreement  shall be governed by an construed in
accordance with the laws of the state of California without regard to the choice
of law provisions thereof.



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     IN WITNESS  WHEREOF,  the  parties  hereto  have  cause  this  Stockholders
Agreement to be executed and delivered as of the date first above written.


                        DIAGNOSTIC IMAGING SERVICES, INC.


                                       By: /s/ Norman Hames
                             Norman Hames, President


                                       Address:  5730 Uplander Way
                                                       Suite 101
                                                       Culver City, CA 90230

SHAREHOLDERS


By: /s/ Norman Hames
     Norman Hames

Address: 5730 Uplander Way, Suite 100
         Culver City, CA 90230


PRIMEDEX HEALTH SYSTEMS, INC.


By: /s/ Herman Rosenman
     Herman Rosenman, President
     Norman Hames

Address: 1516 Cotner Avenue
         Los Angeles, CA 90025




14380GAZ.JGM

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