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Paper Abstract and Keywords
Presentation 2007-11-16 15:55
Automatic cardiac rest period determination for coronary MRA
Kosuke Maruyama, Tetsuo Sato (NAIST), Tomohisa Okada (Kyoto Univ. Hospital), Shigehide Kuhara (Toshiba Medical), Kaori Togashi (Kyoto Univ.), Kotaro Minato (NAIST) MI2007-59
Abstract (in Japanese) (See Japanese page) 
(in English) The purpose of this study is to develop an automated method without user interaction for the optimal placing of ROI for selecting optimal data acquisition window in coronary MRA. One of the major problems of magnetic resonance coronary angiography (MRCA) is the effective suppression of coronary motion due to respiration and cardiac contraction. To compensate for cardiac movement, data acquisition is generally limited to the coronary artery rest period mainly found during end-diastole. End-diastole is called cardiac rest period. Generally, cardiac rest period is decided by operator. Therefore it is subjective, and require much experiences. Right coronary is known as an appropriate region of interest useful for determining cardiac rest period. The proposed method is based on the extraction of intensive change regions and the calculation of the correlation coefficient. We tested the algorithm for 16 sets of MR images and the results are shown.
Keyword (in Japanese) (See Japanese page) 
(in English) Magnetic resonance coronary angiography / end-diastole / cardiac rest period / correlation coefficient / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 326, MI2007-59, pp. 55-58, Nov. 2007.
Paper # MI2007-59 
Date of Issue 2007-11-09 (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 2007-11-16 - 2007-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanazawa Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MI 
Conference Code 2007-11-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Automatic cardiac rest period determination for coronary MRA 
Sub Title (in English)  
Keyword(1) Magnetic resonance coronary angiography  
Keyword(2) end-diastole  
Keyword(3) cardiac rest period  
Keyword(4) correlation coefficient  
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1st Author's Name Kosuke Maruyama  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Tetsuo Sato  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Tomohisa Okada  
3rd Author's Affiliation Kyoto University Hospital (Kyoto Univ. Hospital)
4th Author's Name Shigehide Kuhara  
4th Author's Affiliation Toshiba Medical Systems Corporation (Toshiba Medical)
5th Author's Name Kaori Togashi  
5th Author's Affiliation Graduate School of Medicine, Kyoto University (Kyoto Univ.)
6th Author's Name Kotaro Minato  
6th Author's Affiliation Nara Institute of Science and Technology (NAIST)
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Speaker Author-1 
Date Time 2007-11-16 15:55:00 
Presentation Time 25 minutes 
Registration for MI 
Paper # MI2007-59 
Volume (vol) vol.107 
Number (no) no.326 
Page pp.55-58 
#Pages 4 
Date of Issue 2007-11-09 (MI) 

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