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| Presentation | 2021-09-24 14:20 Effect of Inter-focal Distance in Ultrasonic Focal Scanning Sequence on Bubble Generation in Cavitation-enhanced Ultrasonic Heating Kohei Ueda, Shin Yoshizawa, Shin-ichiro Umemura (Tohoku.Univ.)  US2021-36 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | High-intensity focused ultrasound (HIFU) is a noninvasive treatment of cancer by coagulating a tumor tissue through temperature rise. However, this treatment has a problem of long treatment time because a large number of exposure and intermission between exposure are necessary. To improve the heating efficiency in a HIFU treatment, the use of cavitation bubbles has been investigated. In addition, through electronically scanning the focal spots, the number of exposures can be reduced by heating the region between each focal spot through heat conduction. We have been developing efficient focal spot scanning sequences based on a hexagonal focal spot scanning sequence proposed in a previous study. In this study, the effect of inter-focal distance on bubble generation and heating efficiency using focal spot scanning sequence is investigated. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | HIFU / Focal scanning / Cavitation bubbles, / High speed observation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 182, US2021-36, pp. 13-17, Sept. 2021. | |
| Paper # | US2021-36 | |
| Date of Issue | 2021-09-17 (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 | US2021-36 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2021-09-24 - 2021-09-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Photoacoustics, Ultrasound in medicine, Ultrasonics, etc. |
| Paper Information | |
| Registration To | US |
| Conference Code | 2021-09-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of Inter-focal Distance in Ultrasonic Focal Scanning Sequence on Bubble Generation in Cavitation-enhanced Ultrasonic Heating |
| Sub Title (in English) | |
| Keyword(1) | HIFU |
| Keyword(2) | Focal scanning |
| Keyword(3) | Cavitation bubbles, |
| Keyword(4) | High speed observation |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Kohei Ueda |
| 1st Author's Affiliation | Tohoku University (Tohoku.Univ.) |
| 2nd Author's Name | Shin Yoshizawa |
| 2nd Author's Affiliation | Tohoku University (Tohoku.Univ.) |
| 3rd Author's Name | Shin-ichiro Umemura |
| 3rd Author's Affiliation | Tohoku University (Tohoku.Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-09-24 14:20:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2021-36 |
| Volume (vol) | vol.121 |
| Number (no) | no.182 |
| Page | pp.13-17 |
| #Pages | 5 |
| Date of Issue | 2021-09-17 (US) |
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