Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/808837

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Title
Automatic colonic polyp detection by the mapping using regional unit sphere
Author/Creator
Park, M.;  Jin, S. J.;  Hofstetter, R.;  Xu, M.;  Kang, B. H.
Institution
The University of Newcastle. Faculty of Science & Information Technology, School of Design, Communication and Information Technology
Description
Colonic polyps appear like elliptical protrusions on the inner wall of the colon. The many proposed algorithms assumed the shape of a polyp as a spherical cap, so the algorithms are not flexible when the polyps are irregular shapes. In this paper, we propose a mapping using regional unit sphere (MuRUS) method to overcome the problem caused by unexpected polyp shapes. The MuRUS has shape invariant and size invariant properties. Our method was applied to colon CT images from 37 patients each having a prone and supine scan. There are 45 colonscopically confirmed polyps. The results obtained by our algorithm were compared with those gold standards. 100% of polyps >= 10mm in diameter were detected, 90% of polyps >= 6mm in diameter were detected and 70% of polyps < 6mm in diameter were detected at 7.0 FPs per patient.
Relation
International Journal of Software Engineering and Its Applications Vol. 3, Issue 1, p. 11-18
Relation
http://www.sersc.org/journals/IJSEIA/vol3_no1_2009.php
Date
2009
Publisher
Science and Engineering Research Support Society (SERSC)
Keyword(s)
colonic polyps;  mapping;  mapping using regional unit sphere (MuRUS);  colorectal cancer
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/808837
Identifier
ISSN:1738-9984
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Subject
"International Journal of Software Engineering and Its Applications"
 
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