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Paper Abstract and Keywords
Presentation 2006-01-28 13:00
Estimation of lung deformation by a point matching algorithm for computer assisted thoracoscopic surgery -- Effects of intraoperative measured points on estimation accuracy --
Naoki Aburaya, Masahiko Nakamoto (Osaka Univ.), Kozo Konishi (Kyushu Univ.), Yuko Kitaoka, Yoshinobu Sato (Osaka Univ.), Ichiro Yoshino, Makoto Hashizume (Kyushu Univ.), Shinichi Tamura (Osaka Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In the thoracoscopic surgery, finding a lung cancer from the shrinking lung is not simple task. To assist locating the cancer, we develop the navigation system for thoracoscopic surgery. Since a lung is deformed from preoperative shape by collapse, intraoperative estimation of lung deformation is needed. We employ Chui's point-based non-rigid registration to estimate the lung deformation. Estimation accuracy of Chui's method is affected by number and distribution of the input points.
In order to clarify the relationships between them, we performed simulation experiments. As a result, if enough contour points were measured and labeled matching method was used, estimation error was about 15 mm even when number of sampling points from the lung surface was 5 points.
Keyword (in Japanese) (See Japanese page) 
(in English) Lung deformation / Point-based non-rigid registration / Intraoperative surface measurement / Simulation experiment / / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 580, MI2005-140, pp. 129-132, Jan. 2006.
Paper # MI2005-140 
Date of Issue 2006-01-21 (MI) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee MI  
Conference Date 2006-01-27 - 2006-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyakojimashi-Chuo-Kouminkan 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MI 
Conference Code 2006-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of lung deformation by a point matching algorithm for computer assisted thoracoscopic surgery 
Sub Title (in English) Effects of intraoperative measured points on estimation accuracy 
Keyword(1) Lung deformation  
Keyword(2) Point-based non-rigid registration  
Keyword(3) Intraoperative surface measurement  
Keyword(4) Simulation experiment  
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1st Author's Name Naoki Aburaya  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Masahiko Nakamoto  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Kozo Konishi  
3rd Author's Affiliation Kyushu University (Kyushu Univ.)
4th Author's Name Yuko Kitaoka  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Yoshinobu Sato  
5th Author's Affiliation Osaka University (Osaka Univ.)
6th Author's Name Ichiro Yoshino  
6th Author's Affiliation Kyushu University (Kyushu Univ.)
7th Author's Name Makoto Hashizume  
7th Author's Affiliation Kyushu University (Kyushu Univ.)
8th Author's Name Shinichi Tamura  
8th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2006-01-28 13:00:00 
Presentation Time 60 minutes 
Registration for MI 
Paper # MI2005-140 
Volume (vol) vol.105 
Number (no) no.580 
Page pp.129-132 
#Pages
Date of Issue 2006-01-21 (MI) 


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