[COMPANY LOGO]                               For Immediate Release
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CONTACT:
Mark L. Weinstein
President & Chief Executive Officer
Tel: (267) 757-1360


       BIO-IMAGING TECHNOLOGIES APPOINTS PRICEWATERHOUSECOOPERS AS AUDITOR
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Newtown,  PA.,  April 16, 2002 - Bio-Imaging  Technologies,  Inc.  (NASD OTC BB:
BITI)  ("Bio-Imaging"  or the  "Company")  announced  today  that  its  Board of
Directors has appointed  PricewaterhouseCoopers LLP as the Company's independent
auditors for the fiscal year ending December 31, 2002, replacing Arthur Andersen
LLP, effective  immediately.  The decision was made at the recommendation of the
Audit Committee of the Company's Board of Directors.

Commenting  on the  change,  Dr.  David E.  Nowicki,  Chairman  of the  Board of
Directors,  said,  "The  appointment  of  PricewaterhouseCoopers  was made after
extensive  Audit  Committee  interviews  with  a  number  of  top-ranked  public
accounting  firms.  PricewaterhouseCoopers  was chosen due to its reputation for
excellent service,  professionalism,  industry expertise, and to ensure that the
Company's  stockholders  continue to have the utmost confidence in the integrity
of   the   Company's    financial    statements.    We   are   confident    that
PricewaterhouseCoopers will provide Bio-Imaging with outstanding support, and we
look forward to beginning our audit relationship with them."

The decision to change auditors was not the result of any  disagreement  between
Bio-Imaging  and Arthur  Andersen  on any  matter of  accounting  principles  or
practices, financial statement disclosures, or auditing scope or procedure.

Dr. Nowicki added "Arthur  Andersen has provided  quality service as independent
auditors to Bio-Imaging since 1998. Bio-Imaging has valued its relationship with
Andersen  and we have high regard for the  Andersen  audit team's work ethic and
professionalism.  However,  in  light of the  current  uncertainties  at  Arthur
Andersen,  we  felt  it  was  in the  best  interest  of  our  Company  and  our
stockholders  to make the  change  now."




Bio-Imaging Technologies, Inc. is a pharmaceutical contract service organization
providing  services  that  support  the  product   development  process  of  the
pharmaceutical,  biotechnology  and medical device  industries.  The Company has
specialized  in  assisting  its  clients  in the design  and  management  of the
medical-imaging  component of clinical trials since 1990. Bio-Imaging serves its
clients  on a global  basis  through  its US Core  Labs  (Newtown  and  Plymouth
Meeting,  PA),  European Core Lab (Leiden,  The Netherlands)  and U.S.  Business
Offices (New Jersey, Massachusetts and California).


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Certain matters discussed in this press release are "forward-looking statements"
intended to qualify  for the safe  harbors  from  liability  established  by the
Private Securities  Litigation Reform Act of 1995. In particular,  the Company's
statements  regarding trends in the marketplace and potential future results are
examples of such  forward-looking  statements.  The  forward-looking  statements
include risks and uncertainties,  including, but not limited to, the integration
of the Intelligent Imaging business into the Company's operations, the timing of
projects  due to the  variability  in size,  scope  and  duration  of  projects,
regulatory   delays,   clinical  study  results  which  lead  to  reductions  or
cancellations  of  projects,  and  other  factors,  including  general  economic
conditions and regulatory  developments,  not within the Company's control.  The
factors  discussed  herein  and  expressed  from  time to time in the  Company's
filings with the Securities and Exchange  Commission  could cause actual results
and  developments to be materially  different from those expressed in or implied
by such statements.  The forward-looking statements are made only as of the date
of this press  release  and the Company  undertakes  no  obligation  to publicly
update  such   forward-looking   statements  to  reflect  subsequent  events  or
circumstances.