| Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2013: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Outline of Final Research Achievements |
In noninvasive therapy such as HIFU (high-intensity focused ultrasound) treatment, a noninvasive imaging method to aim and monitor the tissue to be treated is essential because the surgeon cannot looked at the tissue by naked eye. Ultrasonic imaging has advantages that the deflection due to non-uniformity in sound speed can be inherently corrected and that real-time imaging can achieved at a relatively low cost, but temperature mapping is significantly more difficult than MRI in principle. Therefore, we looked at the fact that the correlation between ultrasonic echo images before and after thermal coagulation significantly decreases because of the change in backscatter of the tissue. As the result of this study, we succeeded in real-time detection of HIFU-induced thermal coagulation of tissue by real-time mapping of maximum correlation coefficient between the ultrasonic RF images obtained using high-speed ultrasonic imaging.
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