ST. PAUL, Minn.--(BUSINESS WIRE)--Cardiovascular Systems, Inc. (CSI) (NASDAQ: CSII), announced today that new findings regarding arterial calcification will be unveiled at the 2012 Transcatheter Cardiovascular Therapeutics (TCT) conference in Miami, Oct. 22–26, 2012. Arterial calcification is a common, underdiagnosed condition and complicating factor for physicians treating peripheral arterial disease (PAD). It is estimated to be present in approximately 65 percent of the people treated annually for PAD.