[COMPANY LOGO]                                                     Exhibit 99.1

                                                         For Immediate Release
- ------------------------------------------------------------------------------

Contacts:
Mark L. Weinstein                       Porter, LeVay & Rose, Inc.
President & Chief Executive Officer     Linda Decker, VP-Investor Relations
Tel: (267) 757-3039                     Jeff Myhre, VP-Editorial
                                        Christian Pflaumer, VP-Media Relations
Ted I. Kaminer                          Tel: (212) 564-4700
Chief Financial Officer
Tel: (267) 757-3189


      BIO-IMAGING TECHNOLOGIES REPORTS RECORD SECOND QUARTER REVENUES AND
                                OPERATING INCOME

               Service Revenue Grows 22%; Operating Income up 38%

NEWTOWN, PA, August 13, 2003 - Bio-Imaging Technologies,  Inc.,  ("Bio-Imaging")
(AMEX: BIT) today announced its financial results for the second quarter and six
months ended June 30, 2003.

Total  revenue  for the second  quarter  2003  increased  22% to $6.17  million,
compared with $5.06 million in the prior year second quarter.  Service revenues,
which management  believes is the key revenue component to measure the Company's
top line performance,  also surged 22% to $5.36 million in the second quarter of
2003 from $4.39 million during the same period in 2002. The backlog increased to
$37.9 million as of June 30, 2003 from $34.6 million year over year, an increase
of 9.4%, and from $36.3 million at the end of the first quarter of 2003.

These  revenues  were  generated  from  50  clients  encompassing  118  distinct
projects,  down  slightly  from the 54 clients and 126 projects  that  generated
second quarter 2002 revenues. The decrease in the number of clients and projects
is primarily  due to the sales and  marketing  efforts  being  focused on larger
clinical trials.

Operating  income for second quarter 2003 increased 37% to a record  $512,000 as
compared to $372,000 during the same prior year period.




                                     -more-


                                      -2-

Second  quarter 2003 income  before  income tax  increased  37% to $469,000 from
$340,000 in the second  quarter of 2002.  Income tax provision  rose to $124,000
for the second quarter of 2003 from $49,000 in the second quarter of 2002;  this
was the result of the increase in the Company's effective tax rate in the second
quarter of 2003 as compared to the prior year second quarter.  Accordingly,  the
increase in income  before income taxes was offset by the increase in the income
tax provision.

The  Company's  effective  tax rate for the second  quarter of 2003 was 26.5% as
compared  to 14.5% for the prior year  second  quarter  because  of  diminishing
levels of state and federal net  operating  losses  available  to the Company in
2003. The increase in the effective tax rate resulted in net income of $345,000,
or $0.03 earnings per diluted share in the second quarter of 2003 as compared to
net  income of  $291,000,  or $0.03  earnings  per  diluted  share in the second
quarter of 2002.

Mark L. Weinstein,  President and Chief Executive Officer of Bio-Imaging,  said,
"The second quarter of 2003 was the 12th consecutive profitable quarter,  during
a period in which we made the necessary expenditures to position Bio-Imaging for
long-term growth."

Mr.  Weinstein  also said,  "In the last six months,  we have  consolidated  our
physical plants in the US, integrating the assets from our Quintiles Intelligent
Imaging acquisition into our Newtown,  PA, operations.  Also in the last several
months,  we have added some top  managerial  talent,  and we have  expanded  our
offices in Leiden, Netherlands."

For the six  months  ended June 30,  2003,  total  revenues  were up over 20% at
$11.87  million  compared  with $9.8 million in total  revenue for the half year
ended June 30,  2002.  Service  revenues  rose to $10.46  million  for the first
half-year 2003 from $8.26 million for the first half-year 2002.

Income  before income tax provision for the first half year of 2003 was $835,000
up from $660,000 in the first half year of 2002.  Income tax  provision  rose to
$234,000  for the first six  months  of 2003 up from  $72,000  for the first six
months  of 2002.  Again,  this  reflected  the  diminishing  levels of state and
federal net operating losses available to the Company in 2003.

As a result,  net income was up  marginally  at  $601,000,  or $0.06 per diluted
share,  for the first six months of 2003  compared with  $588,000,  or $0.06 per
diluted share for the first six months of 2002.

Mr. Weinstein  added,  "Looking ahead, we foresee an increase in the utilization
of  medical  imaging  in  clinical  trials for two  reasons.  First,  regulatory
requirements  will drive demand,  and second,  the technology of medical imaging
continually improves, making it increasingly valuable as a clinical tool."

He continued,  "We are bullish on the growth in our market.  Over the past three
years, we believe we have proved our operational model with sequential growth in
revenues. We look forward to a second half of continued sound performance."

Weinstein concluded,  "We are pleased that our operating margin improved to 8.3%
in the second quarter of 2003, as compared to 7.4% during the prior year period,
while absorbing a full quarter of general and administrative expenses related to
the  significant  infrastructure  improvements  made  during  2002 and the first
quarter of 2003.  As we look out to the  remainder of 2003,  we  anticipate  our
total  revenue  for 2003 to be in the  range of $22 - $26  million  and  diluted
earnings per share of $0.12 - $0.15 per share. For 2004, we expect total revenue
growth in excess of 20% and earnings per share growth in excess of 30%."




                                      more

Mr. Weinstein,  Dr. David Nowicki, the Company's Chairman,  and Ted Kaminer, the
Company's Chief Financial Officer,  will hold a conference call to discuss these
results.  The conference call will take place at 11 a.m. EDT on August 13, 2003.
Those  who  wish to  participate  in the  conference  call may  telephone  (888)
335-6674.  A digital replay will be available by telephone for two weeks and may
be accessed by dialing (877)  519-4471,  from the U.S., or (973)  341-3080,  for
international callers, and entering PIN #4047082.

Bio-Imaging  Technologies,  Inc. is a healthcare  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 Lab (Newtown,  PA),  European Core
Lab  (Leiden,  The  Netherlands)  and US  Business  Offices  (Massachusetts  and
California).

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 timing of
projects  due to the  variability  in size,  scope  and  duration  of  projects,
estimates made by management with respect to the Company's  critical  accounting
policies,  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.


                            -FINANCIAL TABLES FOLLOW-








                 BIO-IMAGING TECHNOLOGIES, INC. AND SUBSIDIARIES
                 Condensed Consolidated Statements of Operations

                                   (unaudited)

                      (In thousands, except per share data)

                         For the Three Months Ended   For the Six Months Ended
                            06/30/03    06/30/02        06/30/03    06/30/02
                            --------    --------        --------    --------

Service revenues              5,364       4,385           10,460      8,258
Reimbursement revenues          805         672            1,413      1,542
                            -------     -------         --------     -------
Total revenues              $ 6,169     $ 5,057         $ 11,873    $ 9,800
                            -------     -------         --------     -------

Costs and Expenses:
  Cost of revenues            4,129       3,555            8,076      6,952
  General & admin. expenses     998         690            1,911      1,282
  Sales & marketing expenses    530         440              981        856
                            -------     -------         --------     -------
    Total cost and expenses   5,657       4,685           10,968      9,090
                            -------     -------         --------     -------
Income from operations          512         372              905        710

Interest Expense - net           43          32               70         50
                            -------     -------         --------     -------
Income before taxes             469         340              835        660
Income tax provision            124          49              234         72
                            -------     -------         --------     -------
Net income                      345         291              601        588
                            =======     =======         ========     =======
Basic Earning per share     $  0.04     $  0.03         $   0.07     $ 0.07
                            =======     =======         ========     =======
Weighted average number
of shares - basic             8,732       8,335            8,641      8,314

Diluted earnings per share  $  0.03     $  0.03         $   0.06     $ 0.06
                            =======     =======         ========     =======
Weighted average number of
shares - diluted             10,299       9,743           10,120      9,682





                      Condensed Consolidated Balance Sheets
                                 (In thousands)

                                     ASSETS


                                   June 30, 2003             December 31, 2002
                                   -------------             ------------------
Current assets:                     (unaudited)


  Cash and cash equivalents          $    3,494                  $   2,563
    Accounts receivable                   4,181                      3,928
    Prepaid expenses and other
    current assets                          568                        399
    Deferred income taxes                   364                        364
                                     ----------                  ----------
       Total current assets               8,607                      7,254

  Property & equipment net                4,051                      3,611
  Other assets                              563                        575
                                     ----------                  ----------
        Total assets                 $   13,221                  $  11,440
                                     ==========                  =========


                      LIABILITIES AND STOCKHOLDERS' EQUITY


  Current liabilities:
    Accounts payable                 $     831                   $     660
    Accrued expenses and
    other current liabilities            1,379                        1,364
    Deferred revenue                     4,162                        3,265
    Current maturities of long-term
    debt and capital lease obligations     648                          585
                                     ----------                  ----------
        Total current liabilities        7,020                        5,874

  Long-term debt and capital lease
  obligations                            1,238                        1,379
  Other liability                           --                          568
        Total liabilities            ----------                  ----------
                                         8,258                        7,821

  Stockholders' equity:
    Common stock -                           2                            2
    Additional paid-in capital          10,148                        9,405
    Accumulated deficit                 (5,187)                      (5,788)
                                     ----------                  ----------
        Total stockholders' equity       4,963                        3,619
                                     ----------                  ----------
        Total liabilities &
        stockholders' equity         $  13,221                   $   11,440
                                     ==========                  =========


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