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Paper Abstract and Keywords
Presentation 2013-07-18 13:45
Development of colonoscope tracking method by using 3D abdominal CT images and electromagnetic sensors
Hiroaki Kondo, Masahiro Oda, Kazuhiro Furukawa, Ryoji Miyahara (Nagoya Univ.), Yoshiki Hirooka (Nagoya Univ. Hospital), Hidemi Goto (Nagoya Univ.), Takayuki Kitasaka (Aichi Inst. Tech.), Kensaku Mori (Nagoya Univ.) MI2013-24
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, colon diagnosis method using CT volume, which is called as CT colonography, is widely used. Lesions found by CT colonography can be resected by using colonoscope. However, understanding a colonoscope tip position while inserting it to the colon is difficult. In this paper, we propose an estimation metod of a colonoscope tip position in the colon using abdominal CT volume and electromagnetic position sensor. Firstly, we extract a curve passing the center of lumen (colon centerline) from abdominal CT volume. We obtain a curve that represents the shape of the colonoscope (colonoscope line) by using electromagnetic sensors attached to the colonoscope. We extract anatomical feature points (landmarks) from the colon centerline and register the two coordinate systems utilizing landmarks. Then, we make correspondences between points on the estimated colonoscope line and the colon centerline by using the length along the colonoscope line and the landmarks. We applied the proposed method to a colon phantom and measured correspondence errors of the colonoscope tip. The errors were measured as the length along the colon centerline. The experiment results showed that the average error was 15.8mm at the sections where the colon does not show large deformation.
Keyword (in Japanese) (See Japanese page) 
(in English) Abdominal CT images / Virtual colonoscopy / Colonoscope / Tracking / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 146, MI2013-24, pp. 27-32, July 2013.
Paper # MI2013-24 
Date of Issue 2013-07-11 (MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee MI  
Conference Date 2013-07-18 - 2013-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MI 
Conference Code 2013-07-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of colonoscope tracking method by using 3D abdominal CT images and electromagnetic sensors 
Sub Title (in English)  
Keyword(1) Abdominal CT images  
Keyword(2) Virtual colonoscopy  
Keyword(3) Colonoscope  
Keyword(4) Tracking  
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1st Author's Name Hiroaki Kondo  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Masahiro Oda  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Kazuhiro Furukawa  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
4th Author's Name Ryoji Miyahara  
4th Author's Affiliation Nagoya University (Nagoya Univ.)
5th Author's Name Yoshiki Hirooka  
5th Author's Affiliation Nagoya University Hospital (Nagoya Univ. Hospital)
6th Author's Name Hidemi Goto  
6th Author's Affiliation Nagoya University (Nagoya Univ.)
7th Author's Name Takayuki Kitasaka  
7th Author's Affiliation Aichi Institute of Technology (Aichi Inst. Tech.)
8th Author's Name Kensaku Mori  
8th Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2013-07-18 13:45:00 
Presentation Time 30 minutes 
Registration for MI 
Paper # MI2013-24 
Volume (vol) vol.113 
Number (no) no.146 
Page pp.27-32 
#Pages 6 
Date of Issue 2013-07-11 (MI) 

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