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| 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 |
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| 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 | |
| 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) | |
| Download PDF | US2022-49 |
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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 |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 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 |
| #Pages | 5 |
| Date of Issue | 2022-11-22 (US) |
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