ST. PAUL, Minn.--(BUSINESS WIRE)--Cardiovascular Systems, Inc. (CSI) (Nasdaq: CSII) will host a live webcast of its fiscal third-quarter conference call on Wednesday, May 6, 2009, at 4 p.m. CT (5 p.m. ET). David L. Martin, president and chief executive officer of CSI, and Laurence L. Betterley, chief financial officer, will discuss the company’s results for the fiscal third quarter ended March 31, 2009 and outlook for the remainder of the fiscal year.