For Immediate Release - November 26, 2003

InDex is an efficient, "pay-as-you-go, price per study" service that includes both online, nearline and disaster recovery/business continuance image storage and access. InDex allows hospitals to leverage digital imaging technologies while reducing capital costs for equipment, maintenance, storage and personnel. InDex integrates with Picture Archiving and Communications Systems (PACS) or directly with DICOM-compliant digital modalities, as well as hospital networks and information systems. InDex will be offered by Hologic as an image management solution to the growing base of mammography centers using its Lorad Selenia full field digital mammography system.

"We are very pleased to have the opportunity to offer InSiteOne's powerful image management service, InDex, to our digital mammography customers," said Hologic Chairman and CEO Jack W. Cumming. "The emergence of digital mammography has accelerated the need for innovative solutions providing speed, flexibility, and redundancy in image storage and retrieval. InSiteOne has clearly demonstrated its leadership and progressive thinking in this arena. We look forward to a long and productive relationship."

Hologic entered the digital mammography market in 2002, with commercialization of its Lorad Selenia, the industry's first digital mammography system utilizing revolutionary direct capture technology. Direct capture technology preserves image sharpness by completely eliminating image degradation caused by light diffusion. Hologic's portfolio of products also includes the M-IV and Affinity Series of screen-film mammography systems, and a customized ultrasound system optimized for women's imaging and manufactured by Aloka Company, Ltd. The company also provides both upright and prone stereotactic breast biopsy systems.

Commenting on the agreement, Jim Champagne, Senior Vice President of InSiteOne said, "Our proprietary service, InDex, is ideally suited to the unique needs of the digital mammography community, based on the strength of the technology, the value of our services, and the effectiveness of our economic model. We are excited about the opportunity this agreement brings to expand access to this highly effective and economical storage solution to Hologic's extensive network of current and future digital mammography customers."

This News Release contains forward-looking information that involves risks and uncertainties, including statements about Hologic's plans, objectives, expectations and intentions. Such statements include, without limitation, statements regarding the relationship and anticipated benefits from Hologic's agreement with InSiteOne. These forward-looking statements are subject to known and unknown risks and uncertainties that could cause actual results to differ materially from those anticipated. Factors that could cause actual results to materially differ include, without limitation; Hologic's ability to predict accurately the demand for its products and to develop strategies to address its markets successfully; uncertainties inherent in the development of new products and the enhancement of existing products, including technical and regulatory risks, such as the ability to obtain FDA approval to market products developed, cost overruns and delays; the risk that newly introduced products may contain undetected errors or defects or otherwise not perform as anticipated; the early stage of market development for digital x-ray products; risks relating to Hologic's reliance on a single source of supply for some key components of its products; the need to comply with especially high standards in the manufacture of digital x-ray products; Hologic's ongoing ability to satisfy financial and other covenants in its credit and lease agreements; technical innovations that could render products marketed or under development by Hologic obsolete; competition; and reimbursement policies for the use of Hologic's products. Other factors that could adversely affect Hologic's business and prospects are described in Hologic's filings with the Securities and Exchange Commission. Hologic expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any such statements to reflect any change in Hologic's expectations or any change in events, conditions or circumstances on which any such statement is based.