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Paper Abstract and Keywords
Presentation 2022-11-29 16:10
Approximation of blood flow velocity profile to pulsatile flow model for ultrasonic measurement of wall shear stress in stenotic site
Michiya Mozumi, Masaaki Omura, Ryo Nagaoka, Hideyuki Hasegawa (Univ. of Toyama) US2022-49
Abstract (in Japanese) (See Japanese page) 
(in English) Wall shear stress (WSS) contains useful information for diagnosis of vascular diseases. The WSS estimated by ultrasound would be underestimated because of a low spatial resolution. To improve accuracy of WSS measurements, some studies have attempted to correct the underestimation of the WSS by approximating blood velocity estimated by ultrasound to a laminar flow model. In this report, blood velocity estimated by ultrasound was approximated by the Womersley flow model to correct underestimation of WSS in a case of measurements of stenotic vessels. Experimental results showed that a bias error ±standard deviation of WSS was improved from 57.0±1.7% to 23.8±5.6% by approximation of blood velocity to the Womersley flow model.
Keyword (in Japanese) (See Japanese page) 
(in English) Medical ultrasound / Blood flow imaging / Wall shear stress / High-frame-rate imaging / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 289, US2022-49, pp. 28-32, Nov. 2022.
Paper # US2022-49 
Date of Issue 2022-11-22 (US) 
ISSN Online edition: ISSN 2432-6380
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 US  
Conference Date 2022-11-29 - 2022-11-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Consortium of universities in toyama 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2022-11-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Approximation of blood flow velocity profile to pulsatile flow model for ultrasonic measurement of wall shear stress in stenotic site 
Sub Title (in English)  
Keyword(1) Medical ultrasound  
Keyword(2) Blood flow imaging  
Keyword(3) Wall shear stress  
Keyword(4) High-frame-rate imaging  
1st Author's Name Michiya Mozumi  
1st Author's Affiliation University of Toyama (Univ. of Toyama)
2nd Author's Name Masaaki Omura  
2nd Author's Affiliation University of Toyama (Univ. of Toyama)
3rd Author's Name Ryo Nagaoka  
3rd Author's Affiliation University of Toyama (Univ. of Toyama)
4th Author's Name Hideyuki Hasegawa  
4th Author's Affiliation University of Toyama (Univ. of Toyama)
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Speaker Author-1 
Date Time 2022-11-29 16:10:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2022-49 
Volume (vol) vol.122 
Number (no) no.289 
Page pp.28-32 
Date of Issue 2022-11-22 (US) 

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