Philips sells three PET scanners

American Radiology Services (ARS) has purchased three Allegro PET scanners. The premium dedicated system, which became commercially available in June 2001, uses an advanced detector material called gadolinium oxyorthosilicate (GSO), which features fast scintillation properties and better energy resolution than older crystal technology. ARS is a physician-owned and -managed diagnostic imaging center network with more than 15 outpatient sites in Maryland. It is affiliated with 13 hospitals throughout the state.