Presentation 2017-01-25
[Poster Presentation] Development in Method to Reduce Temperature Rise near Tissue Boundary in Cavitation-Enhanced High-Intensity Focused Ultrasound Treatment
Kazuhiro Sakamoto, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) High-intensity focused ultrasound (HIFU) is a noninvasive method for cancer treatments, in which ultrasound is focused to a target tissue for the coagulation. Cavitation bubbles can be used to increase the HIFU treatment efficiency. However, cavitation bubbles may cause side effects such as skin burn when they are generated outside the target region. The effects of standing wave components caused by the reflection at the tissue boundaries such as skin is considered to be one of the causes to generate the unwanted cavitation babbles. In this study, a method to reduce standing wave components using array transducer was developed, and the advantage of the proposed method was experimentally investigated.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) HIFU / cavitation babbles / array transducer / cavitation imaging
Paper # US2016-75
Date of Issue 2017-01-18 (US)

Conference Information
Committee EA / US
Conference Date 2017/1/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Doshisha Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics, and Related Topics
Chair Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Nobuyuki Endo(Kanagawa Univ.)
Vice Chair Yoichi Haneda(Univ. of Electro-Comm.) / Suehiro Shimauchi(NTT) / Yoichi Itoh(Nihon Univ.) / Minoru Kurosawa(Tokyo Inst. of Tech.)
Secretary Yoichi Haneda(KDDI R&D Labs.) / Suehiro Shimauchi(Akita Pref. Univ.) / Yoichi Itoh(Univ. of Electro-Comm.) / Minoru Kurosawa(Univ. of Toyama)
Assistant Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / TREVINO Jorge(Tohoku Univ.) / Takeshi Morita(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Development in Method to Reduce Temperature Rise near Tissue Boundary in Cavitation-Enhanced High-Intensity Focused Ultrasound Treatment
Sub Title (in English)
Keyword(1) HIFU
Keyword(2) cavitation babbles
Keyword(3) array transducer
Keyword(4) cavitation imaging
1st Author's Name Kazuhiro Sakamoto
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Ryo Takagi
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Shin Yoshizawa
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
4th Author's Name Shin-ichiro Umemura
4th Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2017-01-25
Paper # US2016-75
Volume (vol) vol.116
Number (no) US-419
Page pp.pp.17-21(US),
#Pages 5
Date of Issue 2017-01-18 (US)