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Is a virtual colonoscopy as effective?

Washington Post, April 28, 2009

Invented 16 years ago, virtual colonoscopy has become an increasingly popular alternative to standard, or optical, colonoscopy, which is typically performed by a gastroenterologist. Initially regarded as a high-tech novelty, the new procedure has in recent months received key endorsements as a first-line screening test from influential medical groups. But in February, officials at the Centers for Medicare & Medicaid Services announced a preliminary decision not to cover the procedure as a mass screening test for Medicare recipients.