Alliance Imaging to Present at the Morgan Stanley Third Annual Global Healthcare Unplugged Conference.

ANAHEIM, Calif. -- Alliance Imaging Inc. (NYSE:AIQ) today announced that Paul S. Viviano, chairman of the board and chief executive officer, and R. Brian Hanson, executive vice president and chief financial officer, are scheduled to present at the Morgan Stanley Third Annual Global Healthcare Unplugged Conference on Friday, May 6, 2005, at 10:15 a.m. Eastern time (7:15 a.m. Pacific time). The conference will be held at the Mandarin Oriental Miami Hotel in Miami, Fla.

Interested parties are invited to listen to the presentation, which will be available live over the Internet. The presentation will be broadcast live on the Internet and can be accessed by visiting the company's Web site at www.allianceimaging.com. Click on Audio Presentations in the Investor Relations section of the Web site to access the link. A replay of this webcast will be available until Aug. 2, 2005, using the same link on Alliance Imaging's Web site.

Alliance Imaging is a leading national provider of shared-service and fixed-site diagnostic imaging services, based upon annual revenue and number of systems deployed. Alliance provides imaging services primarily to hospitals and other healthcare providers on a shared and full-time service basis, in addition to operating a growing number of fixed-site imaging centers. The company had 466 diagnostic imaging systems, including 354 MRI systems and 56 PET or PET/CT systems, and over 1,000 clients in 43 states at March 31, 2005. For additional information, please visit www.allianceimaging.com.