Exhibit 99.(a)(12)

FOR IMMEDIATE RELEASE                                Contacts: Glenn H. Epstein
NASDAQ: IMGC                                                   Chairman & CEO

                                                                Michael K. Burke
                                                               Exec. VP & CFO
                                                               (518) 782-1122


            INTERMAGNETICS AND INVIVO AGREE TO COMMENCE DUE DILIGENCE


LATHAM, N.Y., November 24, 2003--Intermagnetics General Corporation (NASDAQ:
IMGC) and Invivo Corporation (NASDAQ: SAFE) today announced that Intermagnetics
and Invivo have agreed to enter into discussions regarding a potential business
combination between the two companies, and, as part of the discussions,
Intermagnetics has entered into an exclusive due diligence review of Invivo.
These discussions are based upon a revised proposal from Intermagnetics to
purchase all of the outstanding shares of Invivo for $22 per share in all cash.

Intermagnetics stated that, based upon publicly available information, it
expects an acquisition of Invivo at its newly proposed price would be modestly
accretive in the company's current fiscal year, which ends May 2004, with more
substantial benefits during fiscal 2005 following a full year of contribution to
earnings.

Note: This announcement is neither an offer to purchase nor a solicitation of an
offer to sell shares of Invivo or Intermagnetics. Should any such offer be
commenced, Intermagnetics and Invivo will file and deliver all forms, notices
and documents required under state and federal law. There can be no assurance
that Intermagnetics and Invivo will enter into a definitive agreement regarding
a business combination between them or as to the terms, including price, of such
agreement.

Intermagnetics (www.igc.com), drawing on the financial strength, operational
excellence and technical leadership in its core businesses of Magnetic Resonance
Imaging and Instrumentation, has become a prominent participant in
superconducting applications for Energy Technology. The company has a more than
30-year history as a successful developer, manufacturer and marketer of
superconducting materials, radio-frequency coils, magnets and devices utilizing
low- and high-temperature superconductors and related cryogenic equipment.

Invivo Corporation's Invivo Research subsidiary designs, manufactures and
markets monitoring systems that measure and display vital signs of patients in
medical settings.

Safe Harbor Statement: This press release contains "forward-looking statements"
as defined in the Private Securities Litigation Reform Act of 1995. These
forward-looking statements are based on currently available competitive,
financial and economic data and management's views and assumptions regarding
future events. Such forward-looking statements are inherently uncertain. Neither
Intermagnetics nor Invivo can provide assurances that a business combination
will be completed, due to certain risks and uncertainties, including but not
limited to: the ability of Intermagnetics to finalize any required contract
related to financing; possible future legal proceedings; as well as other risks
and uncertainties, including but not limited to those detailed herein and from
time to time in Intermagnetics' and Invivo's respective Securities and Exchange
Commission filings.