Supine and prone registration of the colon for CT colonography based on dynamic programming technique

Masahiro Oda; Eiichiro Fukano; Takayuki Kitasaka; Tetsuji Takayama M.D.; Hirotsugu Takabatake M.D.; Masaki Mori M.D.; Hiroshi Natori M.D.; Shigeru Nawano M.D.; Kensaku Mori

doi:10.1117/12.2007562

28 February 2013 Supine and prone registration of the colon for CT colonography based on dynamic programming technique

Masahiro Oda, Eiichiro Fukano, Takayuki Kitasaka, Tetsuji Takayama M.D., Hirotsugu Takabatake M.D., Masaki Mori M.D., Hiroshi Natori M.D., Shigeru Nawano M.D., Kensaku Mori

Author Affiliations +

Proceedings Volume 8670, Medical Imaging 2013: Computer-Aided Diagnosis; 86702B (2013) https://doi.org/10.1117/12.2007562
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

This paper proposes a registration method of the colon taken in two positions of CT images. CT colonographybased colon diagnosis using 3D CT images taken in supine and prone positions is time-consuming because a physician has to refer to many CT images for the diagnosis of a patient. Automated synchronization of the observing areas in the two positions is required to reduce the load on physicians. This paper proposes a novel registration method of the colon in two positions to synchronize the observing areas. The registration process utilizes the sharp curved points of the colon centerlines and haustral folds as landmarks. A dynamic programming technique finds correspondence between the haustral fold landmarks in the two positions. The experimental results using six pairs of CT images showed that the mean registration error was 4.70 [mm].

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Masahiro Oda, Eiichiro Fukano, Takayuki Kitasaka, Tetsuji Takayama M.D., Hirotsugu Takabatake M.D., Masaki Mori M.D., Hiroshi Natori M.D., Shigeru Nawano M.D., and Kensaku Mori "Supine and prone registration of the colon for CT colonography based on dynamic programming technique", Proc. SPIE 8670, Medical Imaging 2013: Computer-Aided Diagnosis, 86702B (28 February 2013); https://doi.org/10.1117/12.2007562

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