ST. PAUL, Minn.--(BUSINESS WIRE)--Cardiovascular Systems, Inc. (CSI) (Nasdaq: CSII) will host a live webcast of its fiscal 2012 third-quarter conference call on Wednesday, May 2, 2012, at 3:45 p.m. CT (4:45 p.m. ET). David L. Martin, president and chief executive officer, and Laurence L. Betterley, chief financial officer, will discuss the company’s results for its fiscal third quarter ended March 31, 2012, and its financial outlook. The company will issue a post-market earnings release on May 2.