ST. PAUL, Minn.–(BUSINESS WIRE)–Cardiovascular Systems, Inc. (CSI) (Nasdaq: CSII), a medical device company developing and commercializing innovative interventional treatment systems for vascular disease, today announced preliminary revenue of approximately $18.7 million for the fiscal 2012 first quarter ended September 30, 2011, compared with $18.2 million in the first quarter of fiscal 2011. The fiscal 2012 first-quarter net loss is expected to be in the range of $(3.9) million to $(4.2) mil

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Cardiovascular Systems Announces Preliminary First-Quarter Financial Results