Virtual Colonoscopy
Virtual colonoscopy: electronic cleansing and Computer Aided Detection of polyps
Virtual colonoscopy is a non-invasive method to screen for polyps - the precursors of colon cancer - based on 3D CT images. Since fecal remains may mimic or obscure polyps, the technique is improved by adding an oral contrast agent to the patient's diet. However, inhomogeneous mixing of contrast and fecal material complicates the interpretation of the images. We are developing sophisticated methods for electronic cleansing, i.e. image processing algorithms to automatically segment the colon surface from the CT data, prior to visualization. To assist the radiologist in this time consuming screening task, we are also developing a Computer Aided Detection systems for finding polyps.
In collaboration with AMC; Supported by Philips Healthcare. Contact Frans Vos / Lucas van Vliet.
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