INDIANAPOLIS, Sept. 8, 2010 (GLOBE NEWSWIRE) -- Positron Corporation (OTCBB:POSC), a leading molecular imaging company specializing in the field of nuclear cardiology, announced today it has placed orders on its sales of three Attrius™ PET scanners. The sales of these systems are for leading cardiology practices and hospitals. The Company also reaffirmed its growth targets as previously disclosed, and is anticipating steady growth acceleration through 2012.