DocumentCode :
1814818
Title :
Automatic correction of level set based subvoxel accurate centerlines for virtual colonoscopy
Author :
Van Uitert, Robert ; Bitter, Ingmar ; Franaszek, Marek ; Summers, Ronald
Author_Institution :
Nat. Inst. of Health, Bethesda, MD
fYear :
2006
fDate :
6-9 April 2006
Firstpage :
303
Lastpage :
306
Abstract :
Virtual colonoscopy (VC) is becoming a more prevalent way to diagnose colon cancer. One of the critical elements in detecting cancerous polyps using VC in conjunction with computer-aided detection is that the colon centerline be determined accurately. The amount of colonic distention can vary from patient to patient, which may cause loops and multiple disconnected segments to appear in the colon segmentation. These variations have caused previous centerline algorithms to fail to capture a complete and accurate centerline for all colons. We have developed an automatic method to determine from a CT VC scan a subvoxel accurate centerline, which is accurate even in cases of over- or underdistended colons. We have demonstrated successfully the effectiveness of our algorithm on 50 cases, half of which resulted in erroneous solutions by previous centerline algorithms
Keywords :
cancer; computerised tomography; medical image processing; cancerous polyps; centerline algorithms; colon cancer diagnosis; colon segmentation; colonic distention; computer-aided detection; level set based subvoxel accurate centerlines; virtual colonoscopy; Abdomen; Cancer detection; Colon; Colonic polyps; Colonography; Isosurfaces; Level set; Radio navigation; Smoothing methods; Virtual colonoscopy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Imaging: Nano to Macro, 2006. 3rd IEEE International Symposium on
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-9576-X
Type :
conf
DOI :
10.1109/ISBI.2006.1624913
Filename :
1624913
Link To Document :
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