Supine and prone CT colonography registration by matching graphs of teniae coli

This paper proposes a registration method for supine and prone CTC scans. The method matches graphs built using the teniae coli, three muscles that run the length of the colon. The teniae are visible on CTC and were detected using fully-automatically software. Then key points of the teniae were obta...

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Bibliographic Details
Published in2012 9th IEEE International Symposium on Biomedical Imaging (ISBI) pp. 712 - 715
Main Authors Zhuoshi Wei, Shijun Wang, Petrick, N., Jianhua Yao, Periaswamy, S., Summers, R. M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2012
Subjects
Colon
Colonography
Computed tomography
CTC
Data models
Feature extraction
graph
Probabilistic logic
registration
teniae coli
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Summary:This paper proposes a registration method for supine and prone CTC scans. The method matches graphs built using the teniae coli, three muscles that run the length of the colon. The teniae are visible on CTC and were detected using fully-automatically software. Then key points of the teniae were obtained by non-uniformed sampling of the teniae. Graphs were built using these key points. The colon registration was formulated as a graph matching problem. Mean field theory was applied to match the graphs. The proposed method was tested on 10 pairs of supine and prone CTC scans. The average registration error was 2.5cm (±0.7 cm, 95% C.I. [2.1 2.9]), significantly improving the baseline graph matching method for CTC registration.
ISBN:145771857X
9781457718571
ISSN:1945-7928
1945-8452
DOI:10.1109/ISBI.2012.6235647