Exhibit 10.23

              AMENDMENT TO DISTRIBUTORSHIP AGREEMENT


For their mutual benefit, the undersigned parties, Trex Medical Corporation,
acting on behalf of its Lorad division (hereinafter referred to as "Trex") and
United States Surgical Corporation (hereinafter referred to as "USSC") hereby
agree to the following amendment to their Distributorship Agreement dated
October 20, 1995 (the "Agreement").

I.    Amendment  to  Agreement.   The  following   provisions  are
      hereby  made a part of this  Agreement,  and shall  supersede
      any  inconsistent  provision  thereof  to the  extent  of the
      inconsistency:

1.    Trex hereby grants to USSC the exclusive worldwide right to distribute
      Tables (i.e., any and all prone steroguide tables, to include ABBI, Trex,
      Lorad and any other brand table manufactured by Trex).

2.    USSC agrees to purchase **** Tables per month beginning in ************ up
      to and including *************.

3.    USSC shall purchase a minimum of **** Tables for ***********. It is
      acknowledged by both parties that through ******* ***************, *****
      systems had been shipped toward this goal.

4.    USSC will retain its exclusivity rights under the Agreement if the
      purchase goals in sections 2 and 3 above are satisfied.

5.    Lorad agrees to inform its distributors  worldwide that USSC
      is now the exclusive  agent to sell Tables and agrees to work
      with  these  distributors  to foster a spirit of  cooperation
      between the  distributors and USSC, Auto Suture Companies and
      its  international  distributors.  The parties  hereto  shall
      coordinate said notification,  which will be made immediately
      upon the signing of this  Amendment,  but will allow for a 30
      day grace period for Lorad  distributors to conclude  ongoing
      sales activities.

6.    Trex's sales force shall sell a minimum of ***** Tables (to be purchased
      by third parties from USSC) during *************. If Trex's sales force
      fails to sell at least ***** Tables, Trex shall, at USSC's option, either
      ************************************
      ************************************************************************
      ************************************************************************
      **************************************************.     Sales
      goals    and    territorial    responsibilities    will    be
      *************************************,  and  designated  Trex
      sales  personnel  will  be  given  independent  transactional
      authority under general USSC guidelines.

7.    USSC and  Trex  agree  that at the  ************************
      they     will      negotiate     in     good     faith     to
      ************************************************************
      *********.

8.    Commencing  ***********,  all ABBI unit  pricing  will be at
      ********.  When  available,  the new USSC/Trex  units will be
      priced at ********  per unit and the ABBI upgrade kit will be
      priced at  ******  per unit.  Projected  availability  of the
      new  platform  and  upgrade  kit  is   *********.   Such  new
      platform  units shall  carry the  trademark  designations  of
      both  parties  hereto.  All of the  Table  systems  will also
      include   an   additional   charge  of   $******   for  table
      installation    services.     Payment    terms    shall    be
      *************************** *********.

9.    USSC hereby grants Trex *********** sales agency on USSC's MIBB line of
      products. The Parties will agree on minimum purchases to be made by Trex
      from USSC in good faith following Clinical Acceptance (defined below).

10.   Trex will  receive a ***  royalty  on MIBB DLU sales  during
      the   first   ***   months   of   commercial    availability.
      Thereafter,  the royalty rate shall be reduced to *** for the
      next *****  years.  Trex will also  receive a ***  royalty on
      all sales of USSC  disposable  products  marketed and sold by
      USSC for use in  biopsy  and  therapeutic  applications  with
      ABBI, MIBBs or Sonopsy,  or with future  generations of ABBI,
      MIBBs or Sonopsy,  or like  systems for breast care (with the
      exception  of core  needle  biopsies  of 12 gauge or smaller)
      sold for a period of  ********  from the date of the  signing
      of this Amendment.

11.   Trex may purchase USSC's MIBB Drivers. Pricing for such Drivers during
      ****** shall be at ************************. Pricing thereafter shall be
      subject to ************
      ******************.

12.    Trex agrees that it shall
      ************************************************
      *********** Trex will also
      *********************************************************************
      ***************************************.
      USSC agrees that,  other than as permitted  herein,  it shall
      ******************************* ************************.

13.   Upon Clinical Acceptance, Trex agrees that it shall also not
      ***********************
      ************************************************************************
      ************************************************************************
      ***********.

14.   Upon Clinical Acceptance, Trex will, as USSC directs, install USSC's MIBB
      drivers on prone Tables purchased by USSC from Trex pursuant to this
      Amendment. These drivers will be provided to Trex at ************.

15.   "Clinical  Acceptance,"  as used in  this  Amendment,  means
      that the parties have  received  reports of positive  results
      for a period of at least 30 days from 5 mutually  agreed-upon
      sits where MIBB  systems  have been  installed  with  upright
      stereotactic  units.  Within one week after the conclusion of
      said 30-day period,  Trex shall inform USSC whether or not it
      accepts  the said  reports as  satisfactory.  If within  said
      week Trex notifies  USSC that the reports are not  acceptable
      to Trex,  or if Trex does not  provide  any notice to USSC of
      its decision,  USSC  will  be free to
      **************************    without thereby being in
      violation of the Agreement or this Amendment.

16.   The Parties intend to provide Sonopsy systems as an add-on to the prone
      Table as well as to the upright mammography systems. The parties will
      cooperate to assist in this development promptly and will commercially
      launch the product upon technical and clinical market acceptance.

17.   Trex Applications Support Services will continue per the Agreement.

18.   Regarding Trex Field Sales Support Services; USSC will reimburse
      **************, for Trex's ******************* field sales organization,
      through **************. ********** expense guidelines will be followed.
      Expenses per ************* field sales organization representative will
      not be reimbursed above ************ per quarter. No reimbursements will
      be provided after ****************.

II. Other Terms and Conditions. All other terms and conditions of the Agreement
(as previously amended), not inconsistent herewith, shall continue in full force
and effect.

Accepted and agreed to:

UNITED STATES SURGICAL CORPORATION

By:           /s/Eitan Nahum_________

Title:        Vice President__________

Date:         March 26, 1998________

TREX MEDICAL CORPORATION


By:          /s/Curt Mills____________

Title:       Vice President Sales MIT__

Date:        March 26, 1998_________


By:______/s/John Brenna_________

Title:         President______________

Date:         March 26, 1998________


TXM #6888