SAN DIEGO--(BUSINESS WIRE)--DR Systems, rated Best in KLAS® for 2006, said today it has been awarded a new contract with Novation for its radiology information systems (RIS) and picture archiving and communications systems (PACS). The three-year agreement is effective May 1, 2007. A leading developer of RIS and PACS, DR Systems was named the best overall healthcare IT vendor by KLAS Enterprises, the respected national research firm.