Conspicuity of Colorectal Polyps at CT Colonography: Visual Assessment, CAD Performance, and the Role of the Flat Polyp

Background and Aims The factors that influence the conspicuity of polyps on CT colonography (CTC) are poorly understood. The aim of this study is to compare radiologists' visual assessment of polyp conspicuity to quantitative image features and show the relationship between visual conspicuity and the detection of colonic polyps by computer-aided detection (CAD) on CT colonography.