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Computer-aided detection in computer tomography colonography: a review
Markus S Juchems1, Andrea S Ernst, Hans-Juergen Brambs
1University Hospitals Ulm, Center for Diagnostic and Interventional Radiology, Steinhoevelstr 9, D 89075 Ulm, Germany +49 731 500 61268 ; +49 731 500 61014 ; markus.juchems@uni-ulm.de.
Background:
Colorectal cancer is one of the most common causes of death from cancer. Computer tomography colonography (CTC) - also known as 'virtual colonoscopy' - is a minimally invasive, CT-based procedure that can simulate conventional colonoscopy using three-dimensional computerized reconstructions. In an attempt to improve the method further, a lot of research emphasis has been put on computer-aided detection (CAD) to overcome potential limitations of this examination.
Objective:
This review recapitulates basic principles of CTC and CAD and highlights the importance of this method as a tool for screening for colorectal cancer.
Methods:
This article reviews the current literature on CAD used with CT colonography.
Results/Conclusion:
CAD potentially helps to improve the detection rate for adenomas, decrease interobserver variability and data set interpretation time.
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