Treatable focal region modulated by double excitation signal superimposition to realize platform temperature distribution during transcranial brain tumor therapy with high-intensity focused ultrasound Project supported by the National Natural Science Foundation of China (Grant No. 81272495) and the Natural Science Foundation of Tianjin, China (Grant No. 16JC2DJC32200). |
(color online) Temperature fields with F1 (0, 1, 75), F2 (0, −1, 75), Δt = 400 ns, M = 0.45 and the maximum focal temperature of 65 °C (Pw = 103.05 W), showing (a) temperature distribution on the y–z plane of x = 0 and cross sections of the focal region (yellow area) over 55 °C on (b) y–z plane and (c) x–z plane respectively. |