Second Research Study of 3-D CT Colonography

Abstract

In contrast with recent large studies of computed tomographic (CT) colonography (virtual colonoscopy) for colon cancer screening that showed poor results using 2-dimensional techniques, the largest study of CT colonography reported excellent results using primarily 3-D imaging (Journal Watch Gastroenterology Dec 16 2003). In the current study, researchers evaluated 3-D CT colonography in 288 high-risk patients with personal or family histories of colorectal polyps or cancer who were scheduled for same-day CT colonography followed by colonoscopy. Colonoscopies were performed at an academic center by an attending physician (47%) or a supervised gastroenterology fellow (53%). The most common reasons for exclusion (39 patients) were inadequate CT colonography (20 patients), inadequate prep (12), and failure of …