| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Outline of Final Research Achievements |
The efficient tissue ablation by controlling the inertial cavitation has been desired for the reduction of treatment time in current high-intensity focused ultrasound (HIFU) therapy. In the present study, the numerical simulator treating cavitation/microbubble in the ultrasound field has been developed. The simulator takes into account the heat generation due to oscillating cavitation bubbles as well as the rectified diffusion which has important role in the initial stage of cavitation bubble growth. The influences of various parameters of ultrasound on the inception of cavitation was investigated. And, the enhancement of localised heating in the cavitation-enhanced HIFU therapy was demonstrated by the present numerical simulation. Furthermore, validation data for the numerical simulation was obtained experimentally and was compared with the calculation result.
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