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Figure 6


Fig. 4A —41-year-old man with 20-mm pedunculated polyp in sigmoid colon. On axial and corresponding 3D endoluminal (right lower corner) CT colonographic images in supine view, color coding is based on shape likelihood, in which polyps, folds, and colonic wall are shown in red, blue, and green, respectively. As a result, polyp is clearly differentiated from folds and colonic wall. Pedunculated polyp is represented by red and is detected as a polyp candidate (arrow) by computer-aided detection (CAD).