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| Presentation | 2011-08-09 14:00 Estimation of rate of change in thickness of myocardium by measuring cyclic variation of ultrasonic integrated backscatter during a cardiac cycle Hiro Shida, Hideyuki Hasegawa, Hiroshi Kanai (Tohoku Univ.)  EA2011-52 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Integrated backscatter from heart wall is getting attention as a quantitative tissue characterization method. First, we reduced slowly time-varying artifact component from RF signal and then measured ultrasonic integrated backscatter in the same site of the heart wall at each time by improving time resolution and spatial resolution in the axial direction. As a result, we found that cyclic variations were different site by site. Next, we calculated interference cycle of IB signal and estimated velocity of change in thickness. According to the results, rate of change in thickness manually estimated by using interference cycle was in good agreement with that estimated by using the phase tracking method. These results show the possibility to estimate the rate of change in thickness by using IB signal. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | integrated backscatter / tissue characterization / artifact / rate of change in thickness / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 175, EA2011-52, pp. 13-17, Aug. 2011. | |
| Paper # | EA2011-52 | |
| Date of Issue | 2011-08-02 (EA) | |
| 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 | EA2011-52 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2011-08-09 - 2011-08-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | RIEC, Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Acoustic Signal Processing, Psychological and Physiological Acoustics, and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2011-08-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of rate of change in thickness of myocardium by measuring cyclic variation of ultrasonic integrated backscatter during a cardiac cycle |
| Sub Title (in English) | |
| Keyword(1) | integrated backscatter |
| Keyword(2) | tissue characterization |
| Keyword(3) | artifact |
| Keyword(4) | rate of change in thickness |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Hiro Shida |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Hideyuki Hasegawa |
| 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 | 2011-08-09 14:00:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2011-52 |
| Volume (vol) | vol.111 |
| Number (no) | no.175 |
| Page | pp.13-17 |
| #Pages | 5 |
| Date of Issue | 2011-08-02 (EA) |
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