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Paper Abstract and Keywords
Presentation 2013-01-24 13:10
[Poster Presentation] 3D image analysis of gastrocnemius muscle for quantitative evaluation of the Locomotive syndrome
Hirofumi Nawa, Tsuneo Watanabe, Daisuke Fukuoka, Nobuo Terabayashi, Takeshi Hara, Hiroshi Fujita (Gifu Univ.) MI2012-75
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, A word to describe the state of requiring care and high-risk condition by musculoskeletal disorders as “Locomotive syndrome” has been proposed. Therefore, the methods for quantitative and easy evaluation of muscle have been required, but the method has not been established. In this study, we propose a method for automatic measurement of the pannation angle obtained by 3D-ultrasound images for the more quantitative evaluation of muscle. First, we determined the top and bottom aponeurosis by approximation of curvilinear surface and extracted the area between those top and bottom aponeurosis as the muscle-fiber area. Second, after we extracted muscle fiber from the muscle-fiber area, power spectrum was calculated by 3D-Fourier transform. In addition, we limited the frequency range of the power spectrum only to the large frequencies and considered the angle of rotation of principal axis of moment in the limited area as the angle of the muscle fiber. Finally, we calculated the mean angle of a line tangent to the curvilinear surface of the bottom aponeurosis and determined pannation angle by adding the mean angle of the tangential line and the angle of the muscle fiber. As a result, the correlation coefficient between the angles measured by this method and by the 2D-ultrasound images was 0.79.
Keyword (in Japanese) (See Japanese page) 
(in English) Locomotive syndrome / Gastrocnemius muscle / Pannation angle / 3D-Fourier transform / 3D-ultrasound image / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 411, MI2012-75, pp. 69-72, Jan. 2013.
Paper # MI2012-75 
Date of Issue 2013-01-17 (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)
Download PDF MI2012-75

Conference Information
Committee MI  
Conference Date 2013-01-24 - 2013-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Bunka Tenbusu Kan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Computational anatomy and its application to computer assisted diagnosis and therapy, etc 
Paper Information
Registration To MI 
Conference Code 2013-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) 3D image analysis of gastrocnemius muscle for quantitative evaluation of the Locomotive syndrome 
Sub Title (in English)  
Keyword(1) Locomotive syndrome  
Keyword(2) Gastrocnemius muscle  
Keyword(3) Pannation angle  
Keyword(4) 3D-Fourier transform  
Keyword(5) 3D-ultrasound image  
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Keyword(7)  
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1st Author's Name Hirofumi Nawa  
1st Author's Affiliation Gifu University (Gifu Univ.)
2nd Author's Name Tsuneo Watanabe  
2nd Author's Affiliation Gifu University (Gifu Univ.)
3rd Author's Name Daisuke Fukuoka  
3rd Author's Affiliation Gifu University (Gifu Univ.)
4th Author's Name Nobuo Terabayashi  
4th Author's Affiliation Gifu University (Gifu Univ.)
5th Author's Name Takeshi Hara  
5th Author's Affiliation Gifu University (Gifu Univ.)
6th Author's Name Hiroshi Fujita  
6th Author's Affiliation Gifu University (Gifu Univ.)
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Speaker Author-1 
Date Time 2013-01-24 13:10:00 
Presentation Time 20 minutes 
Registration for MI 
Paper # MI2012-75 
Volume (vol) vol.112 
Number (no) no.411 
Page pp.69-72 
#Pages 4 
Date of Issue 2013-01-17 (MI) 

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