| Presentation | 2022-05-19 Simplified physico-mathematical model for low invasive cancer treatment by microbubble-enhanced high-intensity-focused-ultrasound Shunsuke Kagami, Tetsuya Kanagawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Bubbly liquid / HIFU / Weakly nonlinear wave / KZK equation / Thermal conduction |
| Paper # | US2022-5 |
| Date of Issue | 2022-05-12 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2022/5/19(1days) |
| 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. |
| Chair | Yoshikazu Koike(Shibaura Inst. of Tech.) |
| Vice Chair | Hikaru Miura(Nihon Univ.) / Kentaro Nakamura(Tokyo Inst. of Tech.) |
| Secretary | Hikaru Miura(Tohoku Univ.) / Kentaro Nakamura(Chiba Univ.) |
| Assistant | Shin Yoshizawa(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics |
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| Language | JPN |
| 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 |
| 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) |
| Date | 2022-05-19 |
| Paper # | US2022-5 |
| Volume (vol) | vol.122 |
| Number (no) | US-36 |
| Page | pp.pp.16-20(US), |
| #Pages | 5 |
| Date of Issue | 2022-05-12 (US) |