10.1055/b-0034-91863 Extracolonic Findings During a CT colonographic examination, the entire abdomen and pelvis are scanned. This means that, along with the colon, extracolonic organs and structures are also examined, including…
10.1055/b-0034-91868 Epidemiology of Colorectal Carcinoma More than 300 000 new cases of colorectal cancer are reported annually in the United States and Europe, making it the second most common malignancy…
10.1055/b-0034-91865 Components of the Report A CT colonography report consists of the following components: patient name, names of the referring physician and the radiologist, indication, examination technique, an assessment of…
10.1055/b-0034-91867 Controversies in Documentation C-RADS is a system based on a consensus recommendation that was put forth by an international body of experts in CT colonography. It is still not…
10.1055/b-0034-91856 Diverticular Disease In the Western world, diverticular disease is the most common disease of the large bowel, affecting 10%–30% of the population aged 50 years and 30%–60% of 80-year-olds….
10.1055/b-0034-91852 3D Applications Apart from 3D virtual endoscopy, various other 3D applications are available to aid evaluation. A distinction is made between “additional 3D projections” and functional 3D applications, known…
10.1055/b-0034-91854 Computer-Assisted Detection of Polyps Computer-assisted detection (CAD) software is a fairly recent development in CT colonography. CAD software automatically detects and marks certain image content based on predefined morphological…
10.1055/b-0034-91851 Data Analysis and Interpretation Strategies After the CT examination is complete, the image data are transferred via a network or via data storage media from the CT scanner to…
10.1055/b-0034-91847 Patient Preparation Just as for colonoscopy, proper bowel cleansing is necessary for CT colonography. As residual intraluminal fluids cannot be removed during the examination, a colon that is as…
10.1055/b-0034-91853 Polyp Measurement Criteria for Correct Measurement of Polyps In general, polyps found on CT colonography are divided according to size into small (<6 mm), medium-size (6–9 mm), and large…