Polypoid Lesions of the Colon
10.1055/b-0034-91857 Polypoid Lesions of the Colon Characterization of Polypoid Lesions at CT Colonography If a polypoid filling defect is detected in the colon, it needs to be further analyzed by…
GASTROENTEROLOGY
Pitfalls and Artifacts
10.1055/b-0034-91862 Pitfalls and Artifacts Errors leading to incorrect diagnosis can arise at any stage during CT colonography, so the range of potential pitfalls and pseudolesions is wide. Suboptimal bowel preparation…
Malignant Diseases of the Colon and Rectum
10.1055/b-0034-91858 Malignant Diseases of the Colon and Rectum By far the most common colonic malignancy is adenocarcinoma. Rare tumors include primary lymphoma, carcinoids, gastrointestinal stromal tumors, melanomas, mesenchymal malignancies (such…
Normal Anatomy of the Colon and Rectum
10.1055/b-0034-91855 Normal Anatomy of the Colon and Rectum Thorough knowledge of the anatomy and the regular two-dimensional (2D) and three-dimensional (3D) CT morphology of the large bowel is essential for…
Inflammatory Bowel Disease
10.1055/b-0034-91859 Inflammatory Bowel Disease Of the inflammatory bowel diseases, diverticulitis and chronic inflammatory bowel diseases are the most common causes of stenotic changes to the bowel wall. CT colonography is…
Strategies for the Standardization and Documentation of Findings
10.1055/b-0034-91866 Strategies for the Standardization and Documentation of Findings To improve and standardize the clinical communication of results of CT colonography, in 2005 the Working Group on Virtual Colonoscopy in…
Ileocecal Region
10.1055/b-0034-91860 Ileocecal Region The ileocecal region comprises the cecum, appendix, ileocecal valve, and terminal ileum. Because of the complex topography of this region, it is sometimes difficult to identify positional…
Screening Requirements
10.1055/b-0034-91869 Screening Requirements Colorectal cancer is one of the most common cancers in the Western world. Many countries have already implemented screening programs or are considering them. Certain requirements must…
Choice of Screening Procedure
10.1055/b-0034-91870 Choice of Screening Procedure Various procedures (fecal occult blood test [FOBT]), sigmoidoscopy, colonoscopy, CT colonography) are available for screening for colorectal cancer. These methods differ in terms of sensitivity,…
CT Colonography for Surveillance after Colorectal Surgery
10.1055/b-0034-91861 CT Colonography for Surveillance after Colorectal Surgery Follow-Up after Colorectal Surgery Surveillance for recurrent and metachronous tumors after surgical resection of colorectal cancer is clinically important because early detection…