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Paper Abstract and Keywords
Presentation 2010-09-03 10:35
Glaucoma estimates based on automated cup-to-disc ratio measurement on retinal fundus images
Atsushi Noudo (Gifu Univ.), Yuji Hatanaka (Univ. of Shiga Pref.), Chisako Muramatsu, Akira Sawada, Takeshi Hara, Tetsuya Yamamoto, Hiroshi Fujita (Gifu Univ.) MI2010-52
Abstract (in Japanese) (See Japanese page) 
(in English) Glaucoma is the leading cause of blindness in Japan. The ratio of the maximum vertical diameters of cup and disc is one of the signs for glaucoma. In general, ophthalmologists determine a cup region by using the kinks of the blood vessels on a retinal fundus image. However, there are inter-reader variations among ophthalmologists in interpretation of such kinks, which makes it also difficult to develop a computer algorithm for automatic detection of the kinks. Therefore, the aim to this study was to develop a computerized algorithm for quantitative measurement of glaucomatous index, and our proposed method employed a profile of optic disc for estimation of cup borders. The area under the ROC curve of 0.942 using 80 retinal fundus images (25 glaucoma cases, 55 normal cases) for distinction between glaucoma and normal cases indicates the usefulness of this method in the diagnosis of glaucoma.
Keyword (in Japanese) (See Japanese page) 
(in English) Glaucoma / Retinal fundus image / Cup-to-disc ratio / Computer aided diagnosis / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 195, MI2010-52, pp. 17-20, Sept. 2010.
Paper # MI2010-52 
Date of Issue 2010-08-27 (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 2010-09-03 - 2010-09-03 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) general medical imaging 
Paper Information
Registration To MI 
Conference Code 2010-09-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Glaucoma estimates based on automated cup-to-disc ratio measurement on retinal fundus images 
Sub Title (in English)  
Keyword(1) Glaucoma  
Keyword(2) Retinal fundus image  
Keyword(3) Cup-to-disc ratio  
Keyword(4) Computer aided diagnosis  
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1st Author's Name Atsushi Noudo  
1st Author's Affiliation Gifu University (Gifu Univ.)
2nd Author's Name Yuji Hatanaka  
2nd Author's Affiliation The University of Shiga Prefecture (Univ. of Shiga Pref.)
3rd Author's Name Chisako Muramatsu  
3rd Author's Affiliation Gifu University (Gifu Univ.)
4th Author's Name Akira Sawada  
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 Tetsuya Yamamoto  
6th Author's Affiliation Gifu University (Gifu Univ.)
7th Author's Name Hiroshi Fujita  
7th Author's Affiliation Gifu University (Gifu Univ.)
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Speaker Author-1 
Date Time 2010-09-03 10:35:00 
Presentation Time 25 minutes 
Registration for MI 
Paper # MI2010-52 
Volume (vol) vol.110 
Number (no) no.195 
Page pp.17-20 
#Pages 4 
Date of Issue 2010-08-27 (MI) 

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