Presentations at International Conferences
2007
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2008
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2009
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2010
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2011
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2012
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2013
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2014
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2015
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2016
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2017
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2018
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2019
2019
The 40th Symposium on UltraSonic Electronics (USE2019)
Nobember 25-27, 2019
@Tokyo, Japan (Meiji University：Chiyoda-ku, Tokyo)
- Yui Tanaka, Shin-ichiro Umemura, Shin Yoshizawa：
"Effect of Cavitation Bubbles outside Focal Region on Ultrasonic Heating in High-Intensity Focused Ultrasound Exposure by Split-Aperture Transmission" (Oral) - Sayaka Ito, Yui Tanaka, Shin-ichiro Umemura, Shin Yoshizawa：
"Effect of Intermittent Duration of Ultrasound Exposure on Bubble Behavior and Temperature Rise in Bubble-Enhanced Ultrasonic Heating" (Poster) - Ikumi Shiozaki, Shin-ichiro Umemura, Shin Yoshizawa：
"Ultrasound Imaging of Cavitation Using Triplet Pulse Sequence in Bubble-enhanced Ultrasonic Heating" (Poster) - Kenki Tsukahara, Shin-ichiro Umemura, Shin Yoshizawa：
"Experimental Investigation of Effect of Ultrasonic Duty Cycle on Generation of Reactive Oxygen Species for Highly Efficient Sonodynamic Treatment"(Poster) - Hiroki Yabata, Shin-ichiro Umemura, Shin Yoshizawa：
"Effect of Shear Wave Propagation on Estimation of Heating Distribution by HIgh-Intensity Focused Ultrasound Using Acoustic Radiation Force Imaging" (Poster)
The 19th International Symposium on Therapeutic Ultrasound (ISTU2019)
June 13-15 , 2019
@Barcelona, Spain (Univercity of Marcelona : Gran Via de les Corts Catalanes, 585, 08007 Barcelona)
- Shin Yoshizawa, Hiroki Yabata, Shin-ichiro Umemura:
“Ultrasonic imaging of tissue displacement induced by short burst exposure of therapeutic ultrasound for estimation of ultrasonically heated region” (Poster)
- Yui Tanaka, Shin-ichiro Umemura, Shin Yoshizawa:
“Suppression of cavitation generation outside focal region by split-aperture transmission methods” (Poster)
2018
The 39th Symposium on UltraSonic Electronics (USE2018)
October 29-31, 2018
@Kyoto, Japan (Doshisha University：Karasuma-higashi-iru, Imadegawa-dori, Kamigyo-ku, Kyoto-shi)
- Daisaku Mashiko, Shin-ichiro Umemura, Shin Yoshizawa：
"Sonochemical and high-speed photographic investigation on efficiency of reactive oxygen generation by high-intensity focused ultrasound for sonodynamic therapy" (Poster) - Yui Tanaka, Daisaku Mashiko, Shin-ichiro Umemura, Shin Yoshizawa：
"Reduction of cavitation generation region outside focal region of high-intensity focused ultrasound by split-aperture transmission for standing wave suppression" (Poster) - Hayato Ikeda, Shin Yoshizawa, Moe Maeda, Shin-ichiro Umemura, Yoshifumi Saijo：
"Blood flow imaging using singular value decomposition filter during high-intensity focused ultrasound exposure" (Poster)
2018 IEEE International Ultrasonics Symposium (IUS2018)
October 22 - 25, 2018
@Kobe, Japan (Portopia Hotel： 10-1, 6 Chome, Minatojima Nakamachi, Chuo-ku, Kobe, 650-0046, Japan)
- Shin Yoshizawa, Toshiya Yura, Kanta Sato, Daisaku Mashiko, Yoshifumi Saijo, Shin-ichiro Umemura：
"Artificial stone comminution and behavior of cavitation bubbles with annular focused ultrasound" (Oral) - Hayato Ikeda, Shin Yoshizawa, Maxime Lafond, Ryosuke Iwasaki, Moe Maeda, Ryo Nagaoka, Shin-ichiro Umemura, Yoshifumi Saijo：
"Differentiation of tissue, cavitation bubbles and blood flow imaging in cavitation-enhanced high-intensity focused ultrasound treatment" (Oral) - Daisaku Mashiko, Shin-ichiro Umemura, Shin Yoshizawa：
"Luminescence estimation of the region of reactive oxygen generation by focused ultrasound with multiple foci for sonodynamic treatment" (Oral) - Ryo Takagi, Shin Yoshizawa：
"Feasibility Study on Noise Reduction Using Continuous Wave Response of Therapeutic Ultrasound for High Intensity Focused Ultrasound Treatment" (Poster) - Hideki Yoshikawa, Taku Yamamoto, Shin Yoshizawa, Shin-ichiro Umemura：
"Ultrasound Sub-pixel Speckle Tracking with Off-plane Motion Detector for Precise Vascular Imaging" (Poster) - Ryo Nagaoka, Shin-ichiro Umemura, Yoshifumi Saijo, Hideyuki Hasegawa：
"Basic study on ultrasonic imaging using piezoelectric elements with polarization-inverted layer" (Poster)
The 18th International Symposium on Therapeutic Ultrasound (ISTU2018)
May 14-17 , 2018
@Nashivlle, USA (Vanderbilt University Student Life Center : 310 25th Ave S, Nashville, TN 37240, USA)
- Shin Yoshizawa, Kazuhiro Sakamoto, Yui Tanaka, Ryo Takagi, shin-ichiro Umemura :
"Effect Of Standing Wave Suppression Sequence On Cavitation Bubbles In Pre-Focal Region For Reduction Of Potential Side Effects In Cavitation-Enhanced Ultrasonic Treatment" (Oral) - Daisaku Mashiko, Shinya Nishitaka, Shin-ichiro Umemura, Shin Yoshizawa :
"Ultrasound Exposure Method To Improve Efficiency Of Sonodynamic Treatment" (Oral) - Hayato Ikeda, Ryo Nagaoka, Maxime Lafond, Shin Yoshizawa, Ryosuke Iwasaki, Moe Maeda, Shin-ichiro Umemura, Yoshifumi Saijo :
"Noise Reduction Of Ultrasound Imaging During Cavitation-Enhanced High-Intensity Focused Ultrasound Treatment" (Oral) - Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura :
"Selective Detection Of Cavitation Bubbles By Triplet Pulse Sequence During High-Intensity Focused Ultrasound Exposure" (Oral)
2017
2017 International Congress on Ultrasonics (ICU2017)
Decemberber 18 - 20, 2017
@Honolulu, USA (Hawaii Convention Center： 1801 Kalakaua Avenue, Honolulu, Hawaii 96815, USA)
- Shinya Nishitaka, Daisaku Mashiko, Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura：
"Enhancement of Reactive Oxygen Species Generation by Using Cavitation Bubbles for Sonodynamic Treatment" (Oral) - Yoshifumi Saijo, Ryo Nagaoka, Hideaki Iwazaki, Toshiyuki Omuro, Taiichiro Ida, Shin Yoshizawa, Shin-ichiro Umemura：
"Three-dimensional Photoacoustic and Ultrasound Combined Microscope for Imaging of Skin Micro Vasculature" (Oral) - Shin-ichiro Umemura, Ryo Nagaoka, Shin Yoshizawa, Yoshifumi Saijo：
"Densely packed semi-random spherical array transducer to suppress grating lobe levels in real-time photoacoustic imaging" (Oral) - Shin-ichiro Umemura, Shin Yoshizawa：
"Cavitation generating and utilizing exposure sequence for focused ultrasound treatment" (Invited) - Ryosuke Iwasaki, Ryo Nagaoka, Shin Yoshizawa, Shin-ichiro Umemura：
"Triplet Pulse Sequence for Cavitation Bubble Imaging in High-Intensity Focused Ultrasound Treatment" (Oral) - Toshiya Yura, Maxime Lafond, Shin Yoshizawa, Shin-ichiro Umemura：
"Effect of focal shape control on stone erosion rate using cavitation bubbles" (Oral)
2017 International Symposium of Frontier Acoustics
Decemberber 5, 2017
@Shenzhen, China (Shenzhen Institutes of Advanced Technologies Chinese Academy of Sciences： Peitao Rd, Nanshan, Shenzhen, China)
- Shin-ichiro Umemura：
"Sonodynamic Therapy: from sonodynamically active antitumor agent to cavitation generating high-intensity focused ultrasound exposure system" (Oral)
International Conference on Biomedical Ultrasound 2017 (ICBMU2017)
Decemberber 3 - 4, 2017
@Hong Kong, China (The Hong Kong Polytechnic University： 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China)
- Shin-ichiro Umemura：
"Generation of localized cavitation by focused traveling-wave for ultrasonic therapy" (Oral)
The 38th Symposium on UltraSonic Electronics (USE2017)
October 25 - 27, 2017
@Tagajo, Japan (Tagajo City Cultural Center：Chuo 2-27-1, Tagajo, Miyagi, Japan)
- Toshiya Yura, Maxime Lafond, Shin Yoshizawa, Shin-ichiro Umemura：
"Effect of various focusing schemes of ultrasound on stone erosion rate using cavitation bubbles" (Oral) - Kazuhiro Sakamoto, Daisaku Mashiko, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Reduction of Potential Side Effects Outside Focal Region by Suppressing Standing Waves in Cavitation Enhanced High-Intensity Focused Ultrasound Treatment" (Poster) - Shinya Nishitaka, Daisaku Mashiko, Shin Yoshizawa, Shin-ichiro Umemura：
"Enhancement of Efficiency in Ultrasonic Generation of Reactive Oxygen Species by Scanning Focus" (Poster) - Daisaku Mashiko, Shinya Nishitaka, Ryosuke Iwasaki, Maxime Lafond, Shin Yoshizawa, Shin-ichiro Umemura：
"Estimation of sonodynamic treatment region with chemosonoluminescence in gel phantom" (Poster) - Ryosuke Iwasaki, Ryo Nagaoka, Shin Yoshizawa, Shin-ichiro Umemura：
"Selective detection of cavitation bubbles by triplet pulse sequence in high-intensity focused ultrasound treatment" (Poster) - Ryo Nagaoka, Shin Yoshizawa, Shin-ichiro Umemura, Yoshifumi Saijo：
"Basic study on improvement of an axial resolution by correcting initial phases of photoacoustic waves in photoacoustic tomography" (Oral) - Hayato Ikeda, Ryo Nagaoka, Maxime Lafond, Shin Yoshizawa, Ryosuke Iwasaki, Moe Maeda, Shin-ichiro Umemura, Yoshifumi Saijo：
"Singular value decomposition of received ultrasound signal for separation of blood flow and cavitation" (Poster) - Takuya Nakamura, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative Measurement of Ultrasonic Pressure Field using combination of Optical Method and Nonlinear Acoustic Holography" (Oral)
2017 IEEE International Ultrasonics Symposium (IUS2017)
September 6 - 9, 2017
@Washington D.C., USA (Omni Shoreham Hotel： 2500 Calvert Street NW, Washington, Distrinct of Columbia 20008, USA)
- Ryosuke Iwasaki, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Prediction of Thermal Coagulation by Short-Pulse Pre-Exposure for Cavitation-Enhanced Ultrasonic Heating" (Oral) - Ryo Nagaoka, Takuya Tabata, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura, Yoshifumi Saijo：
"Visualization of the Microcirculation in Micro Vasculatures by Photoacoustic Tomography with High Frequency Spherical Array Transducer" (Oral) - Shin Yoshizawa, Takuya Nakamura, Yohei Sasaki, Maxime Lafond, Shin-ichiro Umemura：
"Three Dimensional Pressure Field Measurement of Focused Ultrasound by Optical Phase Contrast Method" (Poster) - Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Basic Study on Ultrasonic Tissue Monitoring Using 1.5-Dimensional Ultrasound Phased Array for Ultrasound-Guided High Intensity Focused Ultrasound Treatment" (Poster) - Takuya Tabata, Ryo Nagaoka, Shin Yoshizawa, Shin-ichiro Umemura, Yoshifumi Saijo：
"Differentiation of Vein and Lymphatic Vessel by Photoacoustic Imaging System with Parabolic Array Transducer and Tunable Laser" (Oral)
The 12th International Workshop on Biomaterals in Interface Science
August 4 - 5 , 2017
@Sendai, Japan (Akiu Onsen, Hotel Hananoyu：Yumoto-azajo 33-1, Akiu-cho, Taihaku-ku, Sendai, Miyagi, Japan ）
- Toshiya Yura, Maxime Lafond, Ryosuke Iwasaki, Kanta Sato, Shin Yoshizawa, Shin-ichiro Umemura：
"Optical and acoustic observation of cavitation behavior induced by high-intensity focused ultrasound for renal calculi" (Oral)
Acoustics '17 Boston
The 3rd Joint Meeting of the Acoustical Society of America and the European Acoustics Association
June 25 - 29, 2017
@Boston, MA, USA (Johon B. Hynes Veterans Memorial Convention Center： 900 Boylston Street, Boston, Massachusetts 02115, USA)
- Shin-ichiro Umemura, Shin Yoshizawa：
"Fast accurate optical measurement of medical ultrasonic field in combination with numerical simulation of nonlinear propagation" (Oral)
The 17th International Symposium on Therapeutic Ultrasound (ISTU2017)
May 31 - June 2, 2017
@Nanjing, China (Jinling Hotel： Xinjiekou Square, 2 Hanzhong Road, Nanjing 210005, China)
- Maxime Lafond, Cyril Lafon, Jean-Louis Mestas, Shin-ichiro Umemura：
"Evaluation of A Three Hydrophone-Based Method for Cavitation Localization" (Oral) - Shin Yoshizawa, Kentaro Tomiyasu, Ryosuke Iwasaki, Ryo Takagi, Shin-ichiro Umemura：
"Monitoring of Nonlinear Scattering During Cavitation-enhanced Ultrasonic Heating for Coagulation Detection" (Oral) - Satoshi Tamano, Shin Yoshizawa, Shin-ichiro Umemura：
"Multifunctional Pulse Generator Unit for High-Intensity Focused Ultrasound System" (Poster) - Ryosuke Iwasaki, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Prediction of Thermal Lesion Formation by Short-Pulse Pre-Exposure for Cavitation-Enhanced Ultrasonic Heating" (Poster) - Takuya Nakamura, Hiroki Hanayama, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative Measurement of High-Intensity Pulsed Ultrasound Pressure Field using Combination of Optical Phase Contrast Method and Acoustic Holography" (Poster)
2016
5th Joint Meeting of the Acoustical Society of America and Acoustical Society of Japan
November 27 - December 2, 2016
@Honolulu, HI, USA (Hilton Hawaiian Village Waikiki Beach Resort： 2005 Kalia Road, Honolulu, Hawaii, USA)
- Yoshifumi Saijo, Ryo Nagaoka, Israr Ul Haq, Syahril Siregar, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Skin vasculature imaging by acoustical resolution photoacoustic microscope with parabolic array transducer" (Oral) - Shin Yoshizawa, Ryo Takagi, Ryosuke Iwasaki, K. Tomiyasu, Kai Suzuki, Shin-ichiro Umemura：
"Cavitation-enhanced ultrasonic heating and its monitoring by ultrasound plane wave imaging" (Oral) - Ryo Takagi, Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura：
"Elimination of therapeutic ultrasound noise in phase modulated high untensity focused ultrasound treatment" (Oral) - Shin-ichiro Umemura, Shin Yoshizawa, Ryo Takagi：
"Role of high-frame-rate imaging for monitoring high-intensity focused ultrasound treatment" (Oral) - Shin-ichiro Umemura, Shin Yoshizawa, Ryo Takagi：
"Cavitation in therapeutic ultrasound: to be avoided or to be utilized" (Oral)
The 37th Symposium on UltraSonic Electronics (USE2016)
November 16 - 18, 2016
@Busan, Korea (Pukyong National University： 45, Yongso-ro, Nam-gu, Busan, Korea)
- Xiaolei Qu, Takashi Azuma, Hongxiang Lin, Hirofumi Nakamura, Satoshi Tamano, Shu Takagi, Ichiro Sakuma, Shin-ichiro Umemura, Yoichiro Matsumoto：
"Computational cost reduction by avoiding ray-link iteration of bent-ray method for sound speed image reconstruction in ultrasound computed tomography" (Oral) - Ryosuke Iwasaki, Ryo Takagi, Kentaro Tomiyasu, Shin Yoshizawa, Shin-ichiro Umemura：
"Prediction of ultrasonically induced thermal coagulation from the distribution of absorption of pulsed high-intensity focused ultrasound" (Oral) - Hiroki Hanayama, Takuya Nakamura, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura ：
"Simulation of optical propagation for phase retrieval in shadowgraph of ultrasonic field" (Poster) - Kai Suzuki, Ryosuke Iwasaki, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Simultaneous high-speed optical and acoustic observation of cavitation bubbles generated in biological tissue" (Poster) - Ryo Takagi, Ryosuke Iwasaki, Kentaro Tomiyasu, Shin Yoshizawa, Shin-ichiro Umemura：
"Study on ultrasonic monitoring using 1.5 dimensional ultrasound phased array in US-guided high-intensity focused ultrasound treatment" (Poster) - Kentaro Tomiyasu, Ryo Takagi, Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura：
"Study on control of treatment size in bubble-enhanced high-intensity focused ultrasound using radio-frequency echo signal" (Poster) - Satoshi Tamano, Shin Yoshizawa, Shin-ichiro Umemura ：
"Multifunctional pulse generator for high-intensity focused ultrasound system" (Poster)
2016 IEEE International Ultrasonics Symposium (IUS2016)
September 18 - 21, 2016
@Tours, France (VINCI Convention center： 26-28 Boulevard Heurteloup, 37000 Tours, France)
- Shin Yoshizawa, Seiji Oyama, Hiroki Hanayama, Kai Suzuki, Ryo Takagi, Shin-ichiro Umemura：
"Reconstruction of Focused Ultrasound Pressure Field using Combination of Optical Phase Contrast Measurement and Acoustic Holography" (Oral) - Satoshi Tamano, Hayato Jimbo, Shin Yoshizawa, Shin-ichiro Umemura：
"A study of low power consumption high voltage staircase drive circuit for high-intensity focused ultrasound system" (Poster) - Shin-ichiro Umemura, Shin Yoshizawa, Ryo Takagi：
"High-intensity focused ultrasound treatment combined with high-frame-rate imaging" (Invited) - Ryo Takagi, Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura：
"Noise Elimination of Therapeutic Ultrasound in Phase Modulated High Intensity Focused Ultrasound Exposure to Enhance the Heating Effect" (Oral)
5th International Symposium on Focused Ultrasound 2016
August 28 - September 1, 2016
@Bethesda, MD, USA (Bethesda North Marriott Hotel & Conference Center： 5701 Marinelli Road, North Bethesda, Maryland 20852 USA)
- Satoshi Tamano, Hayato Jimbo, Shin Yoshizawa, Shin-ichiro Umemura：
"Development of low power consumption high-voltage staircase drive circuit for high-intensity therapeutic ultrasound" (Poster)
The 16th International Symposium on Therapeutic Ultrasound (ISTU2016)
March 14 - 16 , 2016
@Israel (Dan Panorama Hotel： Charles Clore Park, Tel Aviv 68012)
- Satoshi Tamano, Hayato Jimbo, Takashi Azuma, Shin Yoshizawa, Keisuke Fujiwara, Kazunori Itani, Shin-ichiro Umemura：
"HIGH-RELIABLE HIGH-VOLTAGE STAIRCASE DRIVE CIRCUIT FOR HIGH-INTENSITY THERAPEUTIC ULTRASOUND SYSTEM" (Poster) - Zulfadhli Zaini, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"COMPOSITE TRANSDUCER WITH HEAVY MATCHING LAYER TO PRODUCE SECOND HARMONIC AS WELL AS FUNDAMENTAL" (Poster)
The Joint Symposium of 10th International Symposium on Medical, Bio- and Nano-Electronics,
and 7th International Workshop on Nanostructures & Nanoelectronics
March 1 - 3 , 2016
@Sendai, Japan（Research Institute of Electrical Communication, Tohoku University： 2-1-1 Katahira, Aoba-ku, Sendai Miyagi, Japan）
- Shin Yoshizawa, Seiji Oyama, Jun Yasuda, Hiroki Hanayama, and Shin-ichiro Umemura：
"Reconstruction of Ultrasound Pressure Field by Combination of Optical Phase Contrast Measurement and Acoustic Holography" (Oral)
- Ryo Takagi, Ryosuke Iwasaki, Shin Yoshizawa,and Shin-ichiro Umemura：
"Monitoring of High-intensity Focused Ultrasound Lesion Formation Using Decorrelation between High-speed Ultrasonic Images by Parallel Beamforming" (Oral)
- Ryosuke Iwasaki, Ryo Takagi, Ryo Nagaoka, Hayato Jimbo, Shin Yoshizawa, Yoshihumi Saijo,and Shin-ichiro Umemura：
"Focal Spot Visualization and Treatment Evaluation in Ultrasonically Thermal Therapy Using Tissue Elasticity Imaging" (Poster)
- Kentaro Tomiyasu, Ryo Takagi, Shin Yoshizawa,and Shin-ichiro Umemura：
"Estimation of tissue degeneration area using simulation of tissue temprerature increase by HIFU exposure" (Poster)
2015
The 36th Symposium on UltraSonic Electronics (USE2015)
September 5 - 7, 2015
@Tsukuba, Japan (Epochal Tsukuba： 2-20-3, Takezono, Tsukuba, Ibaraki, Japan)
- Zulfadhli Zaini, Masamizu Osuga, Hayato Jimbo, Jun Yasuda, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Study on heavy matching layer transducer towards producing second harmonic" (Poster) - Satoshi Tamano, Hayato Jimbo, Takashi Azuma, Shin Yoshizawa, Keisuke Fujiwara, Kazunori Itani, Shin-ichiro Umemura：
"Improvement of high voltage staircase drive circuit waveform for high-intensity therapeutic ultrasound" (Poster) - Ryosuke Iwasaki, Ryo Takagi, Ryo Nagaoka, Hayato Jimbo, Shin Yoshizawa, Yoshifumi Saijo, Shin-ichiro Umemura：
"Monitoring of high-intensity focused ultrasound treatment using shear wave elastography induced by 2D array therapeutic transducer" (Poster) - Ryo Takagi, Hayato Jinbo, Ryosuke Iwasaki, Kentaro Tomiyasu, Shin Yoshizawa, Shin-ichiro Umemura：
"Real-time treatment feedback using novel filter for eliminating therapeutic ultrasound noise in US-guided high-intensity focused ultrasound treatment" (Oral) - Masamizu Osuga, Jun Yasuda, Hayato Jimbo, Shin Yoshizawa, Hiroshi Ishii, Shin-ichiro Umemura：
"Acceleration of lithotripsy using cavitation bubbles induced by second-harmonic superimposition" (Poster) - Hayato Jimbo, Ryo Takagi,Kota Goto, Kei Taguchi, Shin Yoshizawa, Shin-ichiro Umemura：
"Advantage of annular focal region generated by sector-vortex array in cavitation-enhanced high-intensity focused ultrasound treatment" (Poster) - Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Efficient generation of cavitation bubbles and reactive oxygen species using triggered HIFU sequence for sonodynamic treatment" (Poster) - Yumiko Iwase, Hiroyuki Kuwahara, Koji Nishi, Junya Fujimori, Nagahiko Yumita, Toshihiko Ikeda, Fu-shin Chen, Yasunori Momose, Shin-ichiro Umemura：
"Antitumor effect of sonodynamically activated pyrrolidine tris-acid fullerene" (Poster) - Kei Taguchi, Ryo Takagi, Jun Yasuda, Shin Yoshizawa, Tetsuya Kodama, Shin-ichiro Umemura：
"Study of cavitation behavior during high-intensity focused ultrasound exposure by using flash imaging" (Poster) - Seiji Oyama, Jun Yasuda, Hiroki Hanayama, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative measurement of ultrasound pressure field by optical phase contrast method and acoustic holography" (Oral)
2015 IEEE International Ultrasonics Symposium (IUS2015)
October 21 - 24, 2015
@Taipei, Taiwan (Taipei International Convention Center：No.1, XinYi Road, Sec. 5, Taipei, Taiwan)
- Ryo Takagi, Hayato Jimbo, Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura：
"Real-Time Feedback System for High-Intensity Focused Ultrasound Treatment Using Decorrelation Maps of RF Echoes with Plane-Wave Transmission" (Oral) - Ryosuke Iwasaki, Ryo Takagi, Ryo Nagaoka, Hayato Jimbo, Shin Yoshizawa, Yoshihumi Saijo, Shin-ichiro Umemura：
"Monitoring of Lesions Induced by High-Intensity Focused Ultrasound Using Shear Wave Elastography" (Oral) - Masamizu Osuga, Jun Yasuda, Hayato Jimbo, Shin Yoshizawa, Shin-ichiro Umemura：
"High Pulse Reputation Frequency Crushing Model Renal Caiculi Using Cavitation Bubbles Induced by Dual-Frequency Ultrasound Pulses" (Oral) - Seiji Oyama, Mohd Syahid, Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative Measurement of Pulsed Ultrasound Pressure Field Using Optical Phase Contrast" (Oral) - Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Efficient generation of reactive oxygen species sonochemically generated by cavitation bubbles" (Poster) - Hayato Jimbo, Kota Goto, Shin Yoshizawa, Shin-ichiro Umemura：
"A Study of the Driving Circuit for Array Transducer Considering the Impedance Properties" (Poster) - Kei Taguchi, Ryo Takagi, Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Ultrasonic Monitoring of Cavitation Bubbles Induced by High-Intensity Focused Ultrasound in Gel Phantom Containing Thin Layer of Graphite Gel" (Poster) - Zulfadhli Zaini, Hayato Jimbo, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Study of Ultrasound Transducer Which Produces Second Harmonic Superimposed Signal" (Poster)
13th International Symposium on Advanced Biomedical Ultrasound
October 19 , 2015
@Sendai, Japan (Qatar Science Campus Hall：6-6-04, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi)
- Ryo Takagi, Hayato Jimbo, Ryosuke Iwasaki, Kentaro Tomiyasu, Shin Yoshizawa, Shin-ichiro Umemura：
"Real-time Treatment Feedback Using Novel Filter for Eliminating Therapeutic Ultrasound Noise in US-guided High-Intensity Focused Ultrasound Therapy" (Oral) - Seiji Oyama, Jun Yasuda, Hiroki Hanayama, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative Measurement of Focused Ultrasound Pulse Pressure Field Using Optical Phase Contrast Method" (Oral) - Jun Yasuda, Hayato Jimbo, Shin Yoshizawa, Shin-ichiro Umemura：
"Efficient Generation of Reactive Oxygen Species in Rose Bengal Solution for Sonodynamic Treatment" (Poster) - Ryosuke Iwasaki, Ryo Takagi, Ryo Nagaoka, Hayato Jimbo, Shin Yoshizawa, Yoshihumi Saijo, Shin-ichiro Umemura：
"Detection of Thermal Lesions Induced by Cavitation-Enhanced High-Intensity Focused Ultrasound Using Shear Wave Elastography" (Poster) - Masamizu Osuga, Jun Yasuda, hayato Jimbo, Shin Yoshizawa, Shin-ichiro Umemura：
"Acceleration of Lithotripsy Using Cavitation Bubbles Induced by Dual-Frequency Ultrasound" (Poster) - Hayato Jimbo, Kota Goto, Shin Yoshizawa, Shin-ichiro Umemura：
"Reducing electric power consumption with multi-staircase wave driving circuit for high-intensity focused ultrasound" (Poster) - Zulfadhli bin Zaini, Hayato Jimbo, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Evaluation on Ultrasonic Transducer with Heavy Matching Layer towards Generating Second Harmonic" (Poster) - Kei Taguchi, Ryo Takagi, Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Flash Imaging of Cavitation Behavior during High-Intensity Focused Ultrasound Exposure" (Poster) - Kai Suzuki, Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Effect of ultrasonic attenuation on focused ultrasound pressure field and region of cavitation cloud formation" (Poster) - Kentaro Tomiyasu, Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Simulation of tissue temperature increase taking nonlinear propagation of HIFU into consideration" (Poster) - Hiroki Hanayama, Seiji Oyama, Shin Yoshizawa, Shin-ichiro Umemura：
"Preliminary Study of Shadowgraph Using Simulation of Optical Propagation for Ultrasound Pressure Field" (Poster)
10th International Workshop on Biomaterals in Interface Science
August 4 - 5 , 2015
@Zao, Japan (Togatta-onsen Baden-ya Soho, Zao, Miyagi, Japan ）
- Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura：
"Monitoring of tissue coagulation by ultrasound elasticity imaging utilizing ultrasonic nonlinear propagation" (Oral) - Zulfadhli Bin Zaini, Shin Yoshizawa, Shin-ichiro Umemura：
"Study on high impedance matching layer transducer towards producing second harmonic signals" (Oral) - Masamizu Osuga, Shin Yoshizawa, Shin-ichiro Umemura：
"Lithotripsy using cavitation bubbles induced by dual-frequency ultrasound pulses" (Oral)
20th International Symposium on Nonlinear Acoustics (20th ISNA)
June 29 - July 3 , 2015
@Lyon, France（Ecole Centrale de Lyon, 36 avenue Guy de Collongue 69134 Ecully, France ）
- Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative Assessment of Reactive Oxygen Species Generation by Cavitation Incepted Efficiently Using Nonlinear Propagation Effect" (Oral) - Shin-ichiro Umemura, Shin Yoshizawa, Ryo Takagi, Jun Yasuda：
"Enhancement of Cavitation Inception by Second-harmonic Superimposition for Focused Ultrasound Treatment" (Oral)
15th International Symposium on Therapeutic Ultrasound (ISTU2015)
April 15-18 , 2015
@Utrecht, Netherlands (Dom church: Achter de Dom 1, 3512 JN Utrecht, Netherlands)
- Shin Yoshizawa, Kota Goto, Ryo Takagi, Hayato Jimbo, Shin-ichiro Umemura：
"EFFECT OF FOCAL PLANE OFFSET OF PULSED HIFU TO GENERATE CAVITATION AROUND GEOMETRIC FOCAL PLANE FOR CAVITATION‐ENHANCED ULTRASONIC HEATING" (Poster) - Shin-ichiro Umemura, Shin Yoshizawa：
"ARRAY TRANSDUCER FOR SECOND‐HARMONIC SUPERIMPOSITION CONSISTING OF PARTIAL HEMISPHERICAL ELEMENTS: COMPARISON BETWEEN CONCAVE AND CONVEX ELEMENTS" (Oral) - Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"EFFICIENT GENERATION OF REACTIVE OXYGEN SPECIES USING TRIGGERED HIFU SEQUENCE FOR SONODYNAMIC TREATMENT" (Oral)
SPIE Medical Imaging 2015
February 21-26, 2015
@Orlando, FL, USA (Renaissance Orlando at Sea World, Orlando, Florida, USA)
- Xiaolei Qu, Takashi Azuma, Hirofumi Nakamura, Haruka Imoto, Satoshi Tamano, Shu Takagi, Shin-Ichiro Umemura, Ichiro Sakuma, Yoichiro Matsumoto：
"Bent ray ultrasound tomography reconstruction using virtual receivers for reducing time cost" (Oral) - Satoshi Tamano, Takashi Azuma, Haruka Imoto, Shu Takagi, Shin-ichiro Umemura, Yoichiro Matsumoto：
"Transducer elements position calibration in a ring array USCT system" (Oral)
2014
The 35th Symposium on UltraSonic Electronics (USE2014)
December 3-5, 2014
@Tokyo, Japan (Meiji University:1-1 Surugadai, Kanda, Chiyoda-ku, Tokyo)
- Xiaolei Qu, Takashi Azuma, Hirofumi Nakamura, Haruka Imoto, Satoshi Tamano, Shu Takagi, Ichiro Sakuma, Yoichiro Matsumoto：
"A novel automatic first-arrival picking method for ultrasound sound speed tomography" (Poster) - Satoshi Tamano, Takashi Azuma, Haruka Imoto, Shu Takagi, Shin-ichiro Umemura, Yoichiro Matsumoto：
"Transducer elements position compensation in a ring array USCT system" (Poster) - Yumiko Iwase, Nagahiko Yumita, Nishi Koji, Hiroyuki Kuwahara, Toshio Hukai, Toshihiko Ikeda, Shin-ichiro Umemura：
"Apoptosis induction by aluminum phthalocyanine tetrasulfonate-based photodynamic therapy in HL-60 cells" (Poster) - Nami Sugita, Mami Hosokawa, Naoki Sunaga, Yumiko Iwase, Nagahiko Yumita, Toshihiko Ikeda, Shin-ichiro Umemura：
"Sonodynamically-Induced cytotoxicity by rose bengal derivative and microbubbles in isolated sarcoma 180 cells" (Poster) - Jun Yasuda, Takuya Miyashita, Kei Taguchi, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative assessment of reactive oxygen sonochemically generated by cavitation bubbles" (Poster) - Mohd Syahid, Seiji Oyama, Jun Yasuda, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative measurement of high intensity focused ultrasound pressure field by optical phase contrast method applying non-continuous phase unwrapping algorithm" (Oral) - Kota Goto, Ryo Takagi, Hayato Jinbo, Takuya Miyashita, Shin Yoshizawa, and Shin-ichiro Umemura：
"Effect of controlled offset of focal position in cavitation enhanced high intensity focused ultrasound treatment" (Poster) - Keiko Matsuura, Ryo Takagi, Yukari Yanagisawa, Shin Yoshizawa, Tetsuya Kodama, Shin-ichiro Umemura：
"Analysis of decorrelation in ultrasonic echo signals coincided with tissue change due to high-intensity focused ultrasound enhanced by cavitation" (Poster) - Takuya Miyashita, Jun Yasuda, Kei Taguchi, Shin Yoshizawa, Shin-ichiro Umemura：
"Analysis of ultrasound-enhanced heating in near and far vicinity of cavitation area" (Poster) - Ryosuke Iwasaki, Ryo Nagaoka, Ryo Takagi, Kota Goto, Shin Yoshizawa, Yoshifumi Saijo, Shin-ichiro Umemura：
"Detection of thermally-induced lesion using shear wave imaging in cavitation-enhanced high-intensity focused ultrasound therapy" (Poster) - Ryo Takagi, Kota Goto, Hayato Jinbo, Keiko Matsuura, Ryosuke Iwasaki, Shin Yoshizawa, Shin-ichiro Umemura：
"Elimination of therapeutic ultrasound noise from pre-beamformed RF data in ultrasound imaging for US-guided high-intensity focused ultrasound treatment" (Oral) - Ryo Nagaoka, Ryosuke Iwasaki, Mototaka Arakawa, Kazuto Kobayashi, Shin Yoshizawa, Shin-ichiro Umemura, Yoshifumi Saijo：
"A basic study of intrinsic elastography based on propagation velocity distribution induced by artery pulsation" (Poster)
168th Meeting of the Acoustical Society of America
October 27-31 , 2014
@Indianapolis, IN, USA (Mariott Indianapolis Downtown Hotel:350 West Maryland Street, Indianapolis, Indiana 46225 USA)
- Jun Yasuda, Takuya Miyashita, Kei Taguchi, Shin Yoshizawa, Shin-ichiro Umemura：
"Effects of rose bengal on cavitation cloud behavior in optically transparent gel phantom investigated by high-speed observation" (Oral)
2014 IEEE International Ultrasonics Symposium
September 3-6 , 2014
@Chicago, IL, USA（Hilton Hotel Chicago：720 South Michigan Avenue, Chicago, Illinois, 60605, USA）
- Ryo Nagaoka, Kazuto Kobayashi, Shin Yoshizawa, Shin-ichiro Umemura, Yoshifumi Saijo：
"Measurement of Propagation Wave Velocity of Thyroid Induced by Pulsation" (Poster) - Shin-ichiro Umemura, Kenji Otsu, Shin Yoshizawa：
"Partial hemispherical element of array transducer for second-harmonic superimposition" (Oral) - Hirofumi Nakamura, Haruka Imoto, Takashi Azuma, Satoshi Tamano, Kiyoshi Yoshinaka, Akira Sasaki,
Shu Takagi, Shin-ichiro Umemura, Yoichiro Matsumoto：
"Algebraic Reconstruction Considering Curved Ray For ultrasound Tomography with Ring Array to Integrate HIFU Therapeutic System" (Oral) - Shin Yoshizawa, Ryo Takagi, Hiroshi Sasaki, Kota Goto, Takuya Miyashita, Shin-ichiro Umemura：
"Ultrasonic Cavitation Monitoring in High-Intensity Focused Ultrasound Treatment by Pulse Inversion Harmonic Imaging with Plane Wave Transmission Pulses" (Poster) - Ryo Takagi, Shin Yoshizawa, Shin-ichiro Umemura：
"Elimination of HIFU Noise in Monitoring of High Intensity Focused Ultrasound Lesion Formation" (Poster)
14th International Symposium on Therapeutic Ultrasound (ISTU2014)
April 2-5, 2014
@Las Vegas, NV, USA (Caesars Palace Las Vegas：3570 Las Vegas Blvd. S. Las Vegas, Nevada 89109 USA)
- Shin Yoshizawa, Ryo Takagi, Hiroshi Sasaki, Kota Goto, Nobutaka Abe, Shohei Kodera, Hiroshi Ishii, Takashi Suzuki,
Yoshihiro Muragaki, Hirosi Iseki, Shin-ichiro Umemura：
"CAVITATION-ENHANCED HEATING IN A LARGE REGION WITH HIGH-SPEED ULTRASONIC IMAGING" (Poster) - Shin-ichiro Umemura, Kenji Otsu, Shin Yoshizawa：
"ARRAY TRANSDUCER ELEMENT UTILIZING CORESONANCE BETWEEN HEMISPHERICAL PZT SHELL AND WATER SPHERE" (Oral) - Jun Yasuda, Takuya Mityashita, Shin Yoshizawa, Shin-ichiro Umemura：
"EFFECTS OF ROSE BENGAL ON CAVITATION GENERATION IN OPTICALLY TRANSPARENT GEL PHANTOM INVESTIGATED USING HIGH-SPEED CAMERA" (Poster)
The Joint Symposium of 8th International Symposium on Medical, Bio- and Nano-Electronics, and 5th International Workshop on Nanostructures & Nanoelectronics
March 5-7 , 2014
@Sendai, Japan (Tohoku University, Research Institute of Electrical Communication：2-1-1, Katahira, Aoba-ku, Sendai-shi, Miyagi)
- Shin-ichiro Umemura, Shoya Sasaki, Hiroshi Sasaki, Ryo Takagi, Keiko Matsuura, Shin Yoshizawa：
"Roles of High-Speed Imaging in Ultrasound-Guided HIFU Treatment" (Oral) - Mohd Syahid, Ryo Miyasaka, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative Measurement of High Intensity Focused Ultrasound Pressure Field by Optical Subtracted-Shadowgraph Method" (Poster)
2013
The 34th Symposium on UltraSonic Electronics (USE2013)
November 20-22, 2013
@Kyoto, Japan (Doshisha University)
- Shoya Sasaki, Ryo Takagi, Keiko Matsuura, Shin Yoshizawa, Shin-ihiro Umemura：
"Monitoring of High-Intensity Focused Ultrasound Lesion Formation Using Decorrelation between High-Speed Ultrasonic Images by Parallel Beamforming" (Oral) - Ryo Miyasaka, Jun Yasuda, Mohd Syahid, Shin Yoshizawa, Shin-ichiro Umemura：
"Quantitative Measurement of Focused Ultrasound Pressure Field by Background-Subtracted Shadowgraph Using Holographic Diffuser as Screen" (Poster) - Hiroshi Sasaki, Jun Yasuda, Ryo Takagi, Takuya Miyashita, Kota Goto, Shin Yoshizawa, Shin-ichiro Umemura：
"Highly Efficient Cavitation-Enhanced Heating with Dual-Frequency Ultrasound Exposure in High-Intensity Focused Ultrasound Treatment" (Poster) - Jun Yasuda, Takuya Miyashita, Shin Yoshizawa, Shin-ichiro Umemura：
"Effects of Rose Bengal on Cavitation Generation in Gel Phantom Investigated using High-Speed Camera" (Poster)
2013 Joint UFFC, EFTF and PFM Symposium
Jul 21-25 , 2013
@Prague, Czech（Prague Congress Centre：5. kvetna 65, Prague 14021, Czech Republic）
- Jun Yasuda, Ayumu Asai, Shin Yoshizawa, Shin-ichiro Umemura： 「Efficient Generation of Cavitation Bubbles in Rose Bengal Solution by Ultrasound Exposure with Negative- Followed by Positive-Peak-Pressure Emphasized Waves」 (poster)
- Ryo Takagi, Ryo Matsuzawa,Takashi Shishitani, Shin Yoshizawa, Shin-ichiro Umemura： 「Analysis of Relationship between Thermal Dose and Mapped Decorrelation of RF Echoes Induced by High-Intensity Focused Ultrasound」 (Oral)
- Shin-ichiro Umemura, Kenji Otsu, Shin Yoshizawa： 「Prototype therapeutic array transducer element using coresonance between hemispherical piezoceramic shell and water」 (Oral)
- Shin Yoshizawa, Ryo Miyasaka, Mohamad Syahid, Shin-ichiro Umemura： 「Quantitative Measurement of Focused Ultrasound Pressure Field by Background-subtracted Shadowgraph」 (Oral)
4th International Symposium on Laser Ultrasonics and Advanced Sensing (LU2013)
Jun 25-28 , 2013
@Yokohama, Japan（The Red Brick Warehouse:1-2, Shinkou, Naka-ku, Yokohama-shi, Kanawaga）
- Ryo Miyasaka, Soichiro Harigane, Shin Yoshizawa, Shin-ichiro Umemura： 「Quantitative Measurement of Highly FocusedUltrasound Pressure Field by Optical Shadowgraph」 (Oral)
13th International Symposium on Therapeutic Ultrasound (ISTU2013)
May 12-15, 2013
@Shanghai, China（Regal International East Asia Hotel ：516 Hengshan Road Shanghai)
- Ryo Miyasaka, Mohamad Syahid, Shin Yoshizawa, Shin-ichiro Umemura: "Quantitative measurement of highly focused ultrasound pressure field by optical phase contrast" (Oral)
- Jun Yasuda,, Ayumu Asai, Shin Yoshizawa, Shin-ichiro Umemura: "Efficient generation of cavitation cloud in optically-transparent gel phantom by ultrasound exposure with negative-followed by positive-peak-pressure emphasized waves" (Oral)
- Shin Yoshizawa, Ayumu Asai, Hiroki Okano, Tatsuya Miyashita, Shin-ichiro Umemura: "Analysis of localized heat deposition and acoustic scattering of acoustic cavitation bubbles in tissue mimicking gel" (Oral)
- Shoya Sasaki, Keiko Matsuura, Shin Yoshizawa, Sshin-ichiro Umemura: "Biplane ultrasound monitoring of high-intensity focused ultrasound lesion formation" (Oral)
- Hiroshi Sasaki, Kotaro Nakamura, Kota Goto, Takuya Miyashita, Shin Yoshizawa, Shin-ichiro Umemura: "Large-volume coagulation by cavitation-enhanced heating with multiple hifu focal spots." (Oral)
2012
The 33st Symposium on UltraSonic Electronics (USE2012)
November 6-8, 2012
@Chiba, Japan(Chiba University:1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba)
- Shin-ichiro Umemura, Ken-ichi Kawabata, Shin Yoshizawa： "Enhancement of Focal Ultrasonic Treatment by Microbubbles" (invited)
- Soichiro Harigane, Ryo Miyasaka, Shin Yoshizawa, and Shin-ichiro Umemura: "Optical Phase Contrast Mapping of Highly Focused Ultrasonic Fields" (Oral)
- Kotaro Nakamura, Ayumu Asai, Keisuke Takada, Hiroshi Sasaki, Hiroki Okano, Shin Yoshizawa, and Shin-ichiro Umemura: "Large Volume Coagulation Utilizing Multiple Cavitation Clouds Generated by 32 Channel Drive Circuits" (Poster)
- Jun Yasuda, Ayumu Asai, Shin Yoshizawa, and Shin-ichiro Umemura: "Efficient Generation of Cavitation bubbles in Gel Phantom by Dual-Frequency Ultrasound Exposure" (Poster)
- Ayumu Asai, Jun Yasuda, Hiroki Okano, Shin Yoshizawa, and Shin-ichiro Umemura: "Effect of BSA Concentration on Cavitation Bubbles in Gel Phantom" (Poster)
IEEE International Ultrasonics Symposium (IUS 2012)
October 7-10 , 2012
@Dresden, Germany (International Congress Center Dresden：Ostra-Ufer 2 / Devrientstr. 10-12, 01067 Dresden）
- Kenji Otsu, Shin Yoshizawa, Tatsuhiko Hirokawa,Morihito Hagura, and Shin-ichiro Umemura: "Vibration Analysis of Single-Element Focused Ultrasound Transducer" (Oral)
- Shin YoshizawaKotaro Nakamura, Ayumu Asai, and Shin-ichiro Umemura: "High-speed observation of cavitation bubbles generated at multiple focal spots for bubble-enhansed heating in a large focal region" (Oral)
- Mariko Yamamoto, Shin Yoshizawa, and Shin-ichiro Umemura: "Optimization of Phase Shift of the Transducer for High Intensity Focused Ultrasound (HIFU)" (Poster)
- Jun Yasuda, Ayumu Asai, Shin Yoshizawa, and Shin-ichiro Umemura: " Efficient Generation of Cavitation Cloud by Dual-Frequency Ultrasound Exposure in the Optically Transparent Gel" (Poster)
12th International Symposium on Therapeutic Ultrasound (ISTU2012)
June 10-13, 2012
@Heidelberg, Germany（Heidelberg Congress Center ：)
- Ryo Matsuzawa, Takashi Shishitani, Syoya Sasaki, Shin Yoshizawa, Shin-ichiro Umemura: "Motion compensated detection of focal coagulation induced by HIFU using correlation between RF ultrasonic images during treatment" (Oral)
- T. Kihara, T. Mochizuki, R. Tanabe, S. Yosizawa, S.-i. Umemura, T. Dohi, T. Kakimoto, G. Kitazumi, H. Yamashita, T. Chiba: "Smart HIFU (high-intensity focused ultrasound)" for in vivo arterial occlusion"" (Oral)
2011
The 32nd Symposium on UltraSonic Electronics (USE2011)
November 8-10, 2011 @Kyoto, Japan
- Tatsuya Moriyama, Ayumu Asai, Shin Yoshizawa, and Shin-ichiro Umemura: "Thermal simulation of cavitation enhanced ultrasonic heating verified with tissue mimicking gel" (Oral)
- Kenji Otsu, Shin Yoshizawa, and Shin-ichiro Umemura: "Therapeutic array transducer element using coresonance between hemispherical piezoceramic shell and water sphere" (Poster)
- Keisuke Takada, Kotaro Nakamura, Jumpei Okada, Shin Yoshizawa, and Shin-ichiro Umemura: "High voltage staircase driver circuit for triggered HIFU treatment" (Poster)
- Yuta Shimazaki, Soichiro Harigane, Shin Yoshizawa, and Shin-ichiro Umemura: "3D-quantitative optical measurement of asymmetrically focused ultrasound pressure field" (Poster)
- Ryo Matsuzawa, Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Ultrasonic monitoring of high intensity focused ultrasound lesions using sub-image correlation" (Poster)
- Takashi Shishitani, Ryo Matsuzawa, Shin Yoshizawa, and Shin-ichiro Umemura: "Simulated B-mode image from acoustic impedance map of HIFU-exposed specimen" (Poster)
- Eiko Iwasaki, Tatsuya Moriyama, Ayumu Asai, Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Analysis of temperature increase in excised porcine liver tissue induced by cavitation-enhanced HIFU" (Poster)
- Jun Yasuda, Ryo Takagi, Shin Yoshizawa, and Shin-ichiro Umemura: "Efficient generation of cavitation cloud by dual-frequency ultrasound exposure" (Poster)
2011 IEEE International Ultrasonics Symposium (IUS2011)
October 18-21, 2011 @Orlando, FL, USA
- Shin-ichiro Umemura, Jumpei Okada, Keisuke Takada, Tatsuya Moriyama, Eiko Iwasaki, and Shin Yoshizawa: "High-Throughput Coagulation by Heating with Laterally Enlarged Focus, Enhanced by Mircobubble Clouds Created by Electronically Scanned Trigger Pulses" (Oral)
- Shin Yoshizawa, Jun Yasuda, and Shin-ichiro Umemura: "Cavitation Inception and Growth by Dual-Frequency Excitation in High-Intensity Focused Ultrasound Treatment" (Oral)
- Kenji Otsu, Shin Yoshizawa, and Shin-ichiro Umemura: "Novel Concept of Array Transducer Element Using Combined Resonance Between Oscillations of Hemispherical Piezoceramic Shell and Bulk Water" (Oral)
11th International Symposium on Therapeutic Ultrasound (ISTU2011)
April 11-13, 2011 @New York, NY, USA
- Shin Yoshizawa, Ryo Takagi, Jun Yasuda, and Shin-ichiro Umemura: "Cavitation Inception and Growth by Dual-Frequency Excitation Method" (Poster)
2010
The 31st Symposium on UltraSonic Electronics (USE2010)
December 6-8, 2010 @Tokyo, Japan
- Kenji Otsu, Shin Yoshizawa, and Shin-ichiro Umemura: "Breathing mode ceramic element for therapeutic array transducer" (Poster)
- Yuji Komura, Kenji Otsu, Shin Yoshizawa, and Shin-ichiro Umemura: "Analysis of non-uniform vibration of focused ultrasound transducer using time-reversal method" (Poster)
- Yusuke Satoh, Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Effect of thin intervening layer on acoustic impedance measurement of soft tissue using ultrasonic microscope" (Poster)
- Ryo Takagi, Shin Yoshizawa, and Shin-ichiro Umemura: "Cavitation inception by dual-frequency excitation in high intensity focused ultrasound treatment" (Poster)
- Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Study on change in sound speed by HIFU-exposure in chicken breast muscle" (Poster)
- Kengo Takimoto, Tatsuya Moriyama, Shin Yoshizawa, Rei Asami, Ken-ichi Kawabata, and Shin-ichiro Umemura: "Frequency-dependent phase change threshold of perfluorocarbon nanodroplets" (Poster)
- Yuta Inaba, Tatsuya Moriyama, Shin Yoshizawa, and Shin-ichiro Umemura: "High speed observation of multiple cavitation cloud behavior induced by HIFU" (Poster)
- Jumpei Okada, Yuta Inaba, Tatsuya Moriyama, Shin Yoshizawa, and Shin-ichiro Umemura: "Creation of multiple cavitation clouds by phased array transducer driven with staircase voltage" (Poster)
- Ryosuke Omura, Yuta Shimazaki, Shin Yoshizawa, and Shin-ichiro Umemura: "On the optical measurement of focused ultrasound pressure field" (Poster)
2010 IEEE International Ultrasonics Symposium (IUS2010)
October 11-14, 2010 @San Diego, CA, USA
- Ryo Takagi, Shin Yoshizawa, and Shin-ichiro Umemura: "Enhancement of Ultrasonic Heating by Ultrasonically Localized Cavitation for High Intensity Focused Ultrasound" (Oral)
- Ryosuke Omura, Yuta Shimazaki, Shin Yoshizawa, and Shin-ichiro Umemura: "3D reconstruction of ultrasonic fields from optical measurement" (Oral)
- Kenji Otsu, Yasuhiro Kaneshima, Yuji Komura, Shin Yoshizawa, and Shin-ichiro Umemura: "Effects of Leaky Lamb-like Wave Propagation in Single-Element High Intensity Focused Ultrasound Transducer by Vibration Analysis" (Oral)
- Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Change in acoustic impedance and sound speed of HIFU-exposed chicken breast muscle" (Poster)
- Kosuke Moro, Jumpei Okada, Shin Yoshizawa, and Shin-ichiro Umemura: "Staircase-wave driver circuit to drive therapeutic array transducer" (Poster)
- Yuta Inaba, Shin Yoshizawa, and Shin-ichiro Umemura: "Simultaneous coagulation of large volume by creating multiple cavitation clouds in high intensity focused ultrasound treatment" (Poster)
7th International Conference on Ultrasonic Biomedical Microscanning (UBM2010)
September 13-16, 2010 @Matsushima, Miyagi, Japan
- Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Evaluation of HIFU effect on tissues by ultrasound impedance microscope" (Oral)
10th International Symposium on Therapeutic Ultrasound (ISTU2010)
June 9-12, 2010 @Tokyo, Japan
- Shin-ichiro Umemura, Shin Yoshizawa, Ryo Takagi, Rei Asami, and Ken-ichi Kawabata: "Detection of Transient Microbubbles to Enhance Therapeutic Ultrasound Treatment" (Keynote)
- Kenji Otsu, Yasuhiro Kaneshima, Yuji Komura, Shin Yoshizawa, and Shin-ichiro Umemura: "Effects of Leaky Lamb-like Wave Propagation in Single-Element High Intensity Focused Ultrasound Transducer" (Oral)
- Shin Yoshizawa, Yuta Inaba, Ryo Takagi, and Shin-ichiro Umemura: "Enhancement of Localized Heating by Creating Multiple Cavitation Clouds" (Oral)
- Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Acoustic impedance and sound speed measurement of thermally denatured and non-denatured chicken breast muscle" (Poster)
- Kengo Takimoto, Tatsuya Moriyama, Ryo Takagi, Shin Yoshizawa, and Shin-ichiro Umemura: "Gel Phantom Containing Controlled Air to Test Triggered HIFU Exposure Sequence" (Poster)
- Yuta Shimazaki, Ryosuke Omura, Shin Yoshizawa, and Shin-ichiro Umemura: "3D Reconstruction of HIFU Pressure Field from Optical Measurement" (Poster)
- Shin Yoshizawa, Koichiro Iida, Akihide Wada, Takumi Matsuura, Hiroshi Ishii, Shin-ichiro Umemura, and Yoichiro Matsumoto: "Ultrasound Lithotripsy for Pet Kidney Stones" (Poster)
2009
The 30th Symposium on UltraSonic Electronics (USE2009)
November 18-20, 2009 @Kyoto, Japan
- Yasuhiro Kaneshima, Shin Yoshizawa, and Shin-ichiro Umemura: "Vibration Analysis of High Intensity Focused Ultrasound Source using Time Reversal: Effect of Lamb Waves" (Oral)
- Ryosuke Omura, Shin Yoshizawa, and Shin-ichiro Umemura: "Analysis of Therapeutic Ultrasound Pressure Field with Schlieren Optical System" (Poster)
- Kosuke Moro, Shin Yoshizawa, and Shin-ichiro Umemura: "Staircase Voltage MOSFET Driver Circuit for Therapeutic Ultrasound" (Poster)
- Kenji Otsu, Shin Yoshizawa, Takashi Azuma, and Shin-ichiro Umemura: "Vibration Analysis of Therapeutic Ultrasound Transducer by FEM" (Poster)
- Ryo Takagi, Shin Yoshizawa, and Shin-ichiro Umemura: "Enhancement of Localized Heating by Ultrasonically Induced Cavitation for High Intensity Focused Ultrasound Therapy" (Poster)
- Yuta Inaba, Shin Yoshizawa, and Shin-ichiro Umemura: "A Large Region of Coagulation with Multi-Cavitation for HIFU Therapy" (Poster)
- Takashi Shishitani, Shin Yoshizawa, and Shin-ichiro Umemura: "Acoustic Impedance Evaluation of Thermally-induced Lesion in Biological Tissue using Ultrasonic Microscopy" (Poster)
9th International Symposium on Therapeutic Ultrasound (ISTU2009)
September 23-26, 2009 @Aix-en-Provence, France
- Shin Yoshizawa, Ryo Takagi, and Shin-ichiro Umemura: "Tissue ablation using cavitating bubbles triggered by high intensity ultrasound pulse" (Oral)
2009 IEEE International Ultrasonics Symposium (IUS2009)
September 20-23, 2009 @Rome, Italy
- Shin-ichiro Umemura, Shin Yoshizawa, Yoichiro Matsumoto, Kazuaki Sasaki, Rei Asami, and Ken-ichi Kawabata: "Enhancement of ultrasonic heating with microbubbles and their localization in target tissue" (Oral)
2008
2008 IEEE International Ultrasonics Symposium (IUS2008)
November 2-5, 2008 @Beijing, China
- Shin-ichiro Umemura and Takashi Azuma: "Signed Echo Imaging of Carotid Arteries" (Oral)
- Shin Yoshizawa, Shin-ichiro Umemura, and Yoichiro Matsumoto: "Cavitation Detection with Subharmonic Emissions by Low-power Sustaining Ultrasound" (Oral)
8th International Symposium on Therapeutic Ultrasound (ISTU2008)
September 10-13, 2008 @Minneapolis, MN, USA
- Shin Yoshizawa, Shin-ichiro Umemura, and Yoichiro Matsumoto: "Ultrasound Heating Enhanced with Acoustic Cavitation Induced by Pulsed Ultrasound" (Oral)
2007
2007 IEEE International Ultrasonics Symposium (IUS2007)
October 28-31, 2007 @New York, NY, USA
- Shin-ichiro Umemura and Takashi Azuma: "Signed Echo Imaging with High Axial Resolution" (Oral)
