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Paper Abstract and Keywords
Presentation 2009-01-20 14:30
[Poster Presentation] Automatic joint space measurement on the hand radiographs for rheumatoid arthritis
Jeongjoo Song, June Goo Lee, Sang Ho Lee, Yun Sub Jung, Young Jae Kim (Seoul National Univ.), Kwang Gi Kim (National Cancer Center), Sungjun Kim (Yonsei Univ.), Jong Hyo Kim (Seoul National Univ.) MI2008-148
Abstract (in Japanese) (See Japanese page) 
(in English) The measurement of joint distance is an important task in the quantification of joint space narrowing of rheumatoid arthritis. In this paper, we attempted curvature based algorithm to find joint distance from phalangeal region of interest (ROI). Firstly, the input data was extracted phalangeal region from both hand bone images. We segmented each finger bone out of background using k-means clustering. The center information which is half point of binary image was used to apply polynomial curve fit algorithm. Pixel average was applied on normal direction of center curve to overcome the fluctuation by variation of pixel value on the bone region. In other to find minima of the average profile, we proposed the curvature index which is angle difference among reference position of center curve and forward, backward position on the profile. The curvature minima were identified the distal inter-phalangeal joint (DIP) and proximal inter-phalangeal joint (PIP) on the center index profile. As a result, the distance of DIP and PIP were discriminated.
Keyword (in Japanese) (See Japanese page) 
(in English) Hand Radiograph / Joint space / Rhumatoid Arthritis / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 385, MI2008-148, pp. 407-410, Jan. 2009.
Paper # MI2008-148 
Date of Issue 2009-01-12 (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)
Download PDF MI2008-148

Conference Information
Committee MI  
Conference Date 2009-01-19 - 2009-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) National Taiwan University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Imaging 
Paper Information
Registration To MI 
Conference Code 2009-01-MI 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Automatic joint space measurement on the hand radiographs for rheumatoid arthritis 
Sub Title (in English)  
Keyword(1) Hand Radiograph  
Keyword(2) Joint space  
Keyword(3) Rhumatoid Arthritis  
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1st Author's Name Jeongjoo Song  
1st Author's Affiliation Seoul National University (Seoul National Univ.)
2nd Author's Name June Goo Lee  
2nd Author's Affiliation Seoul National University (Seoul National Univ.)
3rd Author's Name Sang Ho Lee  
3rd Author's Affiliation Seoul National University (Seoul National Univ.)
4th Author's Name Yun Sub Jung  
4th Author's Affiliation Seoul National University (Seoul National Univ.)
5th Author's Name Young Jae Kim  
5th Author's Affiliation Seoul National University (Seoul National Univ.)
6th Author's Name Kwang Gi Kim  
6th Author's Affiliation National Cancer Center (National Cancer Center)
7th Author's Name Sungjun Kim  
7th Author's Affiliation Yonsei University (Yonsei Univ.)
8th Author's Name Jong Hyo Kim  
8th Author's Affiliation Seoul National University (Seoul National Univ.)
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Speaker Author-1 
Date Time 2009-01-20 14:30:00 
Presentation Time 210 minutes 
Registration for MI 
Paper # MI2008-148 
Volume (vol) vol.108 
Number (no) no.385 
Page pp.407-410 
#Pages 4 
Date of Issue 2009-01-12 (MI) 

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