CT colonography and colorectal screening

CT colonography and colorectal screening.

Advances in CT Colonography for Colorectal Cancer Screening and Diagnosis

CT colonography (CTC) is a validated colorectal cancer test that provides an additional minimally-invasive screening option which is likely to be preferred by some patients. Important examination prerequisites include adequate colonic cleansing and distention. Tagging of residual material aids in the differentiation of true polyps from stool. Low radiation dose technique should be employed rout...

CT colonography: A new technique for colorectal cancer screening

Although optical col on oscopy is the criterion standard for colorectal cancer screening, CT colonography is now accepted to be useful when screening averagerisk patients. Earlier studies that indicated poor sensitivity for CT colonography have now been largely refuted. Recent improvements in workstation design and advances that permit primary 3D viewing of images have increas ed screening accu...

CT colonography in detection of colorectal carcinoma

BACKGROUND Diagnostic methods used in screening and detecting colorectal carcinoma are digitorectal examination, faecal occult blood testing, sigmoidoscopy, DNA stool analysis, barium enema, colonoscopy, and as of recently CT colonography. The aim of this study was to establish diagnostic accuracy and comfort of CT colonography compared to colonoscopy and barium enema. PATIENTS AND METHODS We...

Colorectal Neoplasia : Performance Characteristics of CT Colonography

1 From the Departments of Radiology (J.Y., R.K.H., A.M.S.G., S.D.W.) and Gastroenterology (G.A.A., K.R.M.), Veterans Affairs Medical Center, 4150 Clement St, San Francisco, CA 94121; and the Departments of Radiology (J.Y., R.K.H., A.M.S.G., S.D.W.) and Gastroenterology (G.A.A., K.R.M.), University of California School of Medicine, San Francisco. From the 1999 RSNA scientific assembly. Received ...