CT colonography: an update.
Computed tomographic (CT) colonography (CTC)--also known as "virtual colonoscopy"--was first described more than a decade ago. As advancements in scanner technology and three-dimensional (3D) postprocessing helped develop this method to mature into a potential option in screening for colorectal cancer, the fundamentals of the examination remained the same. It is a minimally invasive, CT-based procedure that simulates conventional colonoscopy using 2D and 3D computerized reconstructions. The primary aim of CTC is the detection of colorectal polyps and carcinomas. However, studies reveal a wide performance variety in regard to polyp detection, especially for smaller polyps. This article reviews the available literature, discusses established indications as well as open issues and highlights potential future developments of CTC.
Aschoff
Andrik J
AJ
Diagnostic and Interventional Radiology, University Hospitals of Ulm, Steinhoevelstr. 9, 89070, Ulm, Germany. andrik.aschoff@uni-ulm.de
Ernst
Andrea S
AS
Brambs
Hans-Juergen
HJ
Juchems
Markus S
MS
D023881:Colonography, Computed Tomographic / Q000295:instrumentation / Q000379:methods; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D010342:Patient Acceptance of Health Care