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...

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Bibliographic Details
Published in:European radiology 2008-03, Vol.18 (3), p.429-437
Main Authors: Aschoff, Andrik J., Ernst, Andrea S., Brambs, Hans-Juergen, Juchems, Markus S.
Format: Article
Language:English
Subjects:
Colonography, Computed Tomographic - instrumentation
Colonography, Computed Tomographic - methods
Colonoscopy
Colorectal cancer
Colorectal Neoplasms - diagnostic imaging
Diagnostic Radiology
Electrolytes
Gastrointestinal
Humans
Imaging
Internal Medicine
Interventional Radiology
Medicine
Medicine & Public Health
Neuroradiology
Patient Acceptance of Health Care
Patient compliance
Polyethylene glycol
Polyps
Radiology
Ultrasound
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Summary: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.
ISSN:0938-7994
1432-1084
DOI:10.1007/s00330-007-0764-1