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Paper Abstract and Keywords
Presentation 2022-05-19 13:00
Simplified physico-mathematical model for low invasive cancer treatment by microbubble-enhanced high-intensity-focused-ultrasound
Shunsuke Kagami, Tetsuya Kanagawa (Univ. Tsukuba) US2022-5
Abstract (in Japanese) (See Japanese page) 
(in English) Weakly nonlinear propagation of focused ultrasound in the liquid containing many spherical bubbles is theoretically investigated for a low invasive cancer treatment by HIFU. The KZK equation, which has been widely used as the simplified physico-mathematical model for HIFU propagation in pure liquid, is extended that for bubbly liquids by utilizing the volume-averaged basic equations based on two-fluid model for bubbly liquids. The resultant KZK equation consistently describes the nonlinear propagation of focused ultrasound, the nonlinear oscillation of bubbles, the thermal conduction and the temperature fluctuation of gas inside bubbles. Moreover, the numerical calculation utilizing the resultant KZK equation is carried out and moderate temperature rise for applications of cancer treatment by HIFU are obtained.
Keyword (in Japanese) (See Japanese page) 
(in English) Bubbly liquid / HIFU / Weakly nonlinear wave / KZK equation / Thermal conduction / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 36, US2022-5, pp. 16-20, May 2022.
Paper # US2022-5 
Date of Issue 2022-05-12 (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 US2022-5

Conference Information
Committee US  
Conference Date 2022-05-19 - 2022-05-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Nonlinear acoustics, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2022-05-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Simplified physico-mathematical model for low invasive cancer treatment by microbubble-enhanced high-intensity-focused-ultrasound 
Sub Title (in English)  
Keyword(1) Bubbly liquid  
Keyword(2) HIFU  
Keyword(3) Weakly nonlinear wave  
Keyword(4) KZK equation  
Keyword(5) Thermal conduction  
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1st Author's Name Shunsuke Kagami  
1st Author's Affiliation University of Tsukuba (Univ. Tsukuba)
2nd Author's Name Tetsuya Kanagawa  
2nd Author's Affiliation University of Tsukuba (Univ. Tsukuba)
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Speaker Author-1 
Date Time 2022-05-19 13:00:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2022-5 
Volume (vol) vol.122 
Number (no) no.36 
Page pp.16-20 
#Pages
Date of Issue 2022-05-12 (US) 


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