CT colonography of a Medicare-aged population: outcomes observed in an analysis of more than 1400 patients.

Cash, Brooks D; Riddle, Mark S; Bhattacharya, Ishan; Barlow, Duncan; Jensen, Donald; del Pino, Nicolas Moya; Pickhardt, Perry J · AJR Am J Roentgenol · 2012

retrospective_cohort · Level III

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Abstract

We evaluated outcomes of patients 65 years old and older who underwent CT colonography (CTC) between 2004 and 2009. The frequency of referral to colonoscopy based on a polyp size threshold of 6 mm was 14.5%. Colorectal neoplasia was found in 9.3% of patients, with advanced neoplasia in 3.3%. Potentially important extracolonic findings were observed in 2.9% of patients. The low rates of referral to colonoscopy, prevalence of advanced neoplasia, and prevalence of extracolonic findings make CTC a viable option for Medicare-aged patients.

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