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© Research
Publication : Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society

An automatic method for colon segmentation in CT colonography

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society - 21 Mar 2009

Bert A, Dmitriev I, Agliozzo S, Pietrosemoli N, Mandelkern M, Gallo T, Regge D

Link to Pubmed [PMID] – 19304454

Comput Med Imaging Graph 2009 Jun;33(4):325-31

An automatic method for the segmentation of the colonic wall is proposed for abdominal computed tomography (CT) of the cleansed and air-inflated colon. This multistage approach uses an adaptive 3D region-growing algorithm, with a self-adjusting growing condition depending on local variations of the intensity at the air-tissue boundary. The method was evaluated using retrospectively collected CT scans based on visual segmentation of the colon by expert radiologists. This evaluation showed that the procedure identifies 97% of the colon segments, representing 99.8% of the colon surface, and accurately replicates the anatomical profile of the colonic wall. The parameter settings and performance of the method are relatively independent of the scanner and acquisition conditions. The method is intended for application to the computer-aided detection of polyps in CT colonography.

http://www.ncbi.nlm.nih.gov/pubmed/19304454