Under a definitive purchasing agreement, Phoenix-based Abrazo Health Care, a subsidiary of Vanguard Health Systems, will purchase the Arizona Heart Institute, an independent cardiovascular physician practice.

Royal Philips Electronics has agreed to acquire the business of CDP Medical, a Petah Tikva, Israel-based developer of PACS and a subsidiary of medical device distributor Medtechnica.

Meadows Regional Medical Center in Vidalia, Ga., has installed Digisonics image management and structured reporting system for cardiology, the DigiView CVIS/PACS.

ScImage has upgraded its PACS, PicomEnterprise PACS, now offering integration to Philips Healthcares QLAB 2D and 3D ultrasound image processing software.

NDS Surgical Imaging has released its next-generation visualization and informatics platformthe ConnectOR G2.

Cegedim has acquired the Switzerland-based customer relationship management and direct marketing business unit of IMS Health, which will complement its Swiss CRM and direct marketing offerings. Financial details were not disclosed.

Vestar Capital Partners has signed a definitive agreement for an affiliate of Vestar to acquire all of the outstanding shares of HealthGrades, an independent healthcare ratings company, for approximately $294 million (which consists of approximately 35.9 million shares).

Royal Philips Electronics has acquired Shanghai Apex Electronics Technology, a manufacturer of ultrasound transducers, based in Shanghai, China, in order for Philips to increase its portfolio of transducers aimed at the emerging markets.