Synchronized display of virtual colonoscopic views in supine and prone CT images

Authors:
Masahiro Oda;Eiichiro Fukano;Takayuki Kitasaka;Hirotsugu Takabatake;Masaki Mori;Hiroshi Natori;Shigeru Nawano;Kensaku Mori
Affiliations:
Information and Communications Headquarters, Nagoya University, Japan;Graduate School of Information Science, Nagoya University, Japan;Faculty of Information Science, Aichi Institute of Technology, Japan;Sapporo-Minami-Sanjo Hospital, Japan;Sapporo-Kosei General Hospital, Japan;Keiwakai Nishioka Hospital, Japan;International University of Health and Welfare Mita Hospital, Japan;Information and Communications Headquarters, Nagoya University, Japan
Venue:
MICCAI'10 Proceedings of the Second international conference on Virtual Colonoscopy and Abdominal Imaging: computational challenges and clinical opportunities
Year:
2010

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Intra-patient Prone to Supine Colon Registration for Synchronized Virtual Colonoscopy

MICCAI '02 Proceedings of the 5th International Conference on Medical Image Computing and Computer-Assisted Intervention-Part II

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Abstract

Colon diagnosis using CT images of supine and prone positions is time-consuming task because a radiologist has to control viewing fields of virtual colonoscopic (VC) views individually. We propose a method to display VC views of corresponding areas of the colons in the two positions. Viewpoints of VC views in the two positions are obtained by a point interpolation based on the result of the supine-prone correspondence finding. Up-directions of VC views defined based on body orientations of a patient. We generated synchronized VC views of the two positions using the proposed method. Positional difference of the viewpoints between the two positions was 5.03 [mm]. The method can synchronize viewpoints of the supine and prone positions without significant error.