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Paper Abstract and Keywords
Presentation 2013-01-24 13:10
Comparison of MR Elastography and US Elastography: a Phantom Study
Atsuhisa Koyama (Chiba Univ.), Mikio Suga (Chiba Univ./NIRS), Riwa Kishimoto (NIRS), Hajime Ikeda, Shinpei Shimazaki (Chiba Univ.), Tetsuya Wakayama (GEHC-J), Takayuki Obata, Hiroshi Tsuji (NIRS) MI2012-68
Abstract (in Japanese) (See Japanese page) 
(in English) MR Elastography (MRE) and Ultrasound Elastography (USE) are used to quantify the storage modulus or shear wave velocity of tissues. The purpose of this study was to compare the shear wave velocity measured by MRE and ARFI method in USE on the homogeneous phantom and heterogeneous phantom. 4 MHz convex (4C) and 9 MHz linear (9L) probes were used in ARFI method. In homogeneous phantom experiments, strong correlation was found between the rheometer measurement and the value measured by MRE and ARFI method. For heterogeneous phantom tested, embedded soft cylinder was overestimated by each method. There was no correlation between cylinder diameter and measured value. And measured value of soft cylinder was softer than background. In embedded hard cylinder, each measurement method showed lower value as the cylinder diameter became small.
Keyword (in Japanese) (See Japanese page) 
(in English) MR Elastography / Ultrasound Elastography / MRI / Ultrasound system / shear wave velocity measurement / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 411, MI2012-68, pp. 33-36, Jan. 2013.
Paper # MI2012-68 
Date of Issue 2013-01-17 (MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
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 2013-01-24 - 2013-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Bunka Tenbusu Kan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Computational anatomy and its application to computer assisted diagnosis and therapy, etc 
Paper Information
Registration To MI 
Conference Code 2013-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Comparison of MR Elastography and US Elastography: a Phantom Study 
Sub Title (in English)  
Keyword(1) MR Elastography  
Keyword(2) Ultrasound Elastography  
Keyword(3) MRI  
Keyword(4) Ultrasound system  
Keyword(5) shear wave velocity measurement  
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Keyword(7)  
Keyword(8)  
1st Author's Name Atsuhisa Koyama  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Mikio Suga  
2nd Author's Affiliation Chiba University/National Institute of Radiological Sciences (Chiba Univ./NIRS)
3rd Author's Name Riwa Kishimoto  
3rd Author's Affiliation National Institute of Radiological Sciences (NIRS)
4th Author's Name Hajime Ikeda  
4th Author's Affiliation Chiba University (Chiba Univ.)
5th Author's Name Shinpei Shimazaki  
5th Author's Affiliation Chiba University (Chiba Univ.)
6th Author's Name Tetsuya Wakayama  
6th Author's Affiliation GE Healthcare Japan Corporation (GEHC-J)
7th Author's Name Takayuki Obata  
7th Author's Affiliation National Institute of Radiological Sciences (NIRS)
8th Author's Name Hiroshi Tsuji  
8th Author's Affiliation National Institute of Radiological Sciences (NIRS)
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Speaker Author-1 
Date Time 2013-01-24 13:10:00 
Presentation Time 20 minutes 
Registration for MI 
Paper # MI2012-68 
Volume (vol) vol.112 
Number (no) no.411 
Page pp.33-36 
#Pages 4 
Date of Issue 2013-01-17 (MI) 

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