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Paper Abstract and Keywords
Presentation 2016-01-20 14:38
Semiautomatic method for measuring alveolar bone resorption level with alveolar crest line detection by thin plate splines deformation and gradient analysis on dental panoramic radiographs
Ryo Takahashi, Chisako Muramatsu, Takeshi Hara (Gifu Univ.), Tatsuro Hayashi (Media Co., Ltd.), Tatsumasa Fukui, Akitoshi Katsumata (Asahi Univ.), Hiroshi Fujita (Gifu Univ.) MI2015-139
Abstract (in Japanese) (See Japanese page) 
(in English) Alveolar bone resorption is one of the most significant signs to evaluate the destruction of periodontium by periodontal diseases. It takes time for a dentist to measure quantitatively alveolar bone loss on dental panoramic radiographs (DPRs). In this study, we propose a semi-automated alveolar bone resorption evaluation and visualization method using DPRs. In the proposed method, a standard dentition image was created from a DPR by thin plate spline method. The alveolar crest points were detected by the gradient analysis with the Hessian matrix and MAP estimation on the standard dentition image. The alveolar resorption level and the alveolar crest line were derived from these points. The result indicates that the resorption level determined by the proposed method has the comparable ability in detecting patients with periodontal diseases with that of the alveolar bone loss measurement by a dentist.
Keyword (in Japanese) (See Japanese page) 
(in English) CAD (Computer-aided diagnosis) / Dental panoramic radiograph / Periodontal disease / Thin plate spline / Hessian matrix / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 401, MI2015-139, pp. 327-330, Jan. 2016.
Paper # MI2015-139 
Date of Issue 2016-01-12 (MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 2016-01-19 - 2016-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Bunka Tenbusu Kan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General topics in medical imaging 
Paper Information
Registration To MI 
Conference Code 2016-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Semiautomatic method for measuring alveolar bone resorption level with alveolar crest line detection by thin plate splines deformation and gradient analysis on dental panoramic radiographs 
Sub Title (in English)  
Keyword(1) CAD (Computer-aided diagnosis)  
Keyword(2) Dental panoramic radiograph  
Keyword(3) Periodontal disease  
Keyword(4) Thin plate spline  
Keyword(5) Hessian matrix  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ryo Takahashi  
1st Author's Affiliation Gifu University (Gifu Univ.)
2nd Author's Name Chisako Muramatsu  
2nd Author's Affiliation Gifu University (Gifu Univ.)
3rd Author's Name Takeshi Hara  
3rd Author's Affiliation Gifu University (Gifu Univ.)
4th Author's Name Tatsuro Hayashi  
4th Author's Affiliation Media Co., Ltd. (Media Co., Ltd.)
5th Author's Name Tatsumasa Fukui  
5th Author's Affiliation Asahi University (Asahi Univ.)
6th Author's Name Akitoshi Katsumata  
6th Author's Affiliation Asahi University (Asahi Univ.)
7th Author's Name Hiroshi Fujita  
7th Author's Affiliation Gifu University (Gifu Univ.)
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Speaker Author-1 
Date Time 2016-01-20 14:38:00 
Presentation Time 12 minutes 
Registration for MI 
Paper # MI2015-139 
Volume (vol) vol.115 
Number (no) no.401 
Page pp.327-330 
#Pages 4 
Date of Issue 2016-01-12 (MI) 

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