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Paper Abstract and Keywords
Presentation 2009-01-19 13:30
[Poster Presentation] Quantitative evaluation of Pulmonary Emphysema Using Thoracic 3-D CT Images
Haruki Nakago, Jun Nakai, Shinsuke Saita, Mitsuru Kubo, Yoshiki Kawata, Noboru Niki (Tokushima Univ.), Satoko Mizuno, Yuichi Takiguchi, Nobuhiro Tanabe, Koichiro Tatsumi (Chiba Univ.) MI2008-87
Abstract (in Japanese) (See Japanese page) 
(in English) Emphysema patients have the tendency to increase due to aging and smoking. Emphysematous disease destroys alveolus and to repair is impossible, thus early detection is essential. CT value of lung tissue decreases due to the destruction of lung structure. This CT value becomes lower than the normal lung- low density absorption region or referred to as Low Attenuation Area (LAA). So far, the conventional way of extracting LAA by simple thresholding has been proposed. However, the CT value of CT image fluctuates due to the measurement conditions, with various bias components such as inspiration, expiration and congestion. It is therefore necessary to consider these bias components in the extraction of LAA. We removed these bias components and we proposed LAA extraction algorithm. So I analyze emphysema characteristics mental change caused by a disease quantitatively by using this method that extracted LAA.
Keyword (in Japanese) (See Japanese page) 
(in English) Multh slice CT / COPD / LAA / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 385, MI2008-87, pp. 131-134, Jan. 2009.
Paper # MI2008-87 
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)
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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 Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Quantitative evaluation of Pulmonary Emphysema Using Thoracic 3-D CT Images 
Sub Title (in English)  
Keyword(1) Multh slice CT  
Keyword(2) COPD  
Keyword(3) LAA  
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1st Author's Name Haruki Nakago  
1st Author's Affiliation Tokushima University (Tokushima Univ.)
2nd Author's Name Jun Nakai  
2nd Author's Affiliation Tokushima University (Tokushima Univ.)
3rd Author's Name Shinsuke Saita  
3rd Author's Affiliation Tokushima University (Tokushima Univ.)
4th Author's Name Mitsuru Kubo  
4th Author's Affiliation Tokushima University (Tokushima Univ.)
5th Author's Name Yoshiki Kawata  
5th Author's Affiliation Tokushima University (Tokushima Univ.)
6th Author's Name Noboru Niki  
6th Author's Affiliation Tokushima University (Tokushima Univ.)
7th Author's Name Satoko Mizuno  
7th Author's Affiliation Chiba University (Chiba Univ.)
8th Author's Name Yuichi Takiguchi  
8th Author's Affiliation Chiba University (Chiba Univ.)
9th Author's Name Nobuhiro Tanabe  
9th Author's Affiliation Chiba University (Chiba Univ.)
10th Author's Name Koichiro Tatsumi  
10th Author's Affiliation Chiba University (Chiba Univ.)
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Speaker Author-1 
Date Time 2009-01-19 13:30:00 
Presentation Time 210 minutes 
Registration for MI 
Paper # MI2008-87 
Volume (vol) vol.108 
Number (no) no.385 
Page pp.131-134 
#Pages 4 
Date of Issue 2009-01-12 (MI) 

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