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Proceedings Paper

Registration of prone and supine colons in the presence of topological changes
Author(s): Jung W. Suh; Christopher L. Wyatt
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Paper Abstract

CT colonography is a minimally-invasive screening technique for colorectal polyps in which X-ray CT images of the distended colon are acquired, usually in the prone and supine positions. Registration of segmented colons from both images will be useful for computer-assisted polyp detection. We have previously presented algorithms for registration of the prone and supine colon when both are well distended and there is a single connected lumen. However due to inadequate bowel preparation or peristalsis there may be collapsed segments in one or both of the colons resulting in a topological change in the images. Such changes make deformable registrations of the colons difficult, and at present there are no registration algorithms which can accommodate them. In this paper we present an algorithm which can perform volume registration of prone/supine colon images in the presence of a topological change.

Paper Details

Date Published: 12 March 2008
PDF: 11 pages
Proc. SPIE 6916, Medical Imaging 2008: Physiology, Function, and Structure from Medical Images, 69160C (12 March 2008); doi: 10.1117/12.770576
Show Author Affiliations
Jung W. Suh, Virginia Polytechnic Institute and State Univ. (United States)
Christopher L. Wyatt, Virginia Polytechnic Institute and State Univ. (United States)
Wake Forest Univ. (United States)


Published in SPIE Proceedings Vol. 6916:
Medical Imaging 2008: Physiology, Function, and Structure from Medical Images
Xiaoping P. Hu; Anne V. Clough, Editor(s)

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