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| Presentation | 2017-10-05 14:30 Analysis of pulse wave velocity by ultrasonic instantaneous measurement of small vibrations at multiple points on arterial wall Mika Ito, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.)  US2017-59 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the conventional pulse wave velocity (PWV) measurement methods, there are problems that the measurement range is wide and it’s assumed that the pulse wave has only an incident component. In the present study, we measured the velocity of the small vibration at multiple points in the longitudinal direction along the carotid arterial wall using ultrasound. Furthermore, we obtained the analytic signal of velocity waveform and calculated the local PWV by the least squares method. The incident and reflected components of the pulse wave were calculated just after the first heart sound of PCG. Additionally, a propagation component faster than the pulse wave was calculated just before the arrival of the incident component of the pulse wave and would be the propagation of the mechanical vibration. In the conventional method, the PWV can only be calculated at a characteristic time such as the rise time of the blood pressure waveforms. In the proposed method, in contrast, it became possible to calculated change with time of the local PWV at every time for every phase by using the phase of the analytic signals. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | ultrasound / carotid artery / phased-tracking method / pulse wave velocity / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 227, US2017-59, pp. 17-20, Oct. 2017. | |
| Paper # | US2017-59 | |
| Date of Issue | 2017-09-28 (US) | |
| 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) | |
| Download PDF | US2017-59 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2017-10-05 - 2017-10-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2017-10-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of pulse wave velocity by ultrasonic instantaneous measurement of small vibrations at multiple points on arterial wall |
| Sub Title (in English) | |
| Keyword(1) | ultrasound |
| Keyword(2) | carotid artery |
| Keyword(3) | phased-tracking method |
| Keyword(4) | pulse wave velocity |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Mika Ito |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Mototaka Arakawa |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 3rd Author's Name | Hiroshi Kanai |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-10-05 14:30:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2017-59 |
| Volume (vol) | vol.117 |
| Number (no) | no.227 |
| Page | pp.17-20 |
| #Pages | 4 |
| Date of Issue | 2017-09-28 (US) |
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