| Presentation | 2021-09-24 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, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | HIFU / Focal scanning / Cavitation bubbles, / High speed observation |
| Paper # | US2021-36 |
| Date of Issue | 2021-09-17 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2021/9/24(1days) |
| 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. |
| 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) | 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 |
| 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.) |
| Date | 2021-09-24 |
| Paper # | US2021-36 |
| Volume (vol) | vol.121 |
| Number (no) | US-182 |
| Page | pp.pp.13-17(US), |
| #Pages | 5 |
| Date of Issue | 2021-09-17 (US) |