Measurement of high intensity focused ultrasound fields using a combined measurement and SBE modeling approach

• Published in: The Journal of the Acoustical Society of America 2012-04, Vol.131 (4_Supplement), p.3365-3365
• Main Authors: Chen, Tao, Fan, Tingbo, Xia, Liyang, Hu, Jimin, Liu, Ru, Zhang, Dong
• Format: Article
• Language: English
• ISSN: 0001-4966; 1520-8524
• DOI: 10.1121/1.4708686

Acoustic characterization of high Intensity focused ultrasound (HIFU) is essential for its development in clinical treatment. In the present study, a combined measurement and modeling approach is proposed. At relative low amplitude excitation, acoustic measurement in water is performed to calibrate the transmitter parameters; then the acoustic fields of HIFU transmitter can be predicted based on the SBE model. To verify the validity of this approach, a 1 MHz HIFU transmitter with large aperture is utilized in the study, and the HIFU field is measured by a HFO-660 fiber optic hydrophone. This study is helpful for the accurate characterization of HIFU fields. [This work is supported by the National Basic Research Program 973 (Grant No. 2011CB707900) from Ministry of Science and Technology, China, National Natural Science Foundation of China (10974093 and 11011130201), and the Fundamental Research Funds for the Central Universities (Grant Nos. 1103020402, 1116020410 and 1112020401)]