Fig. 8
From: Multi-focal HIFU reduces cavitation in mild-hyperthermia
Distribution of voxel temperatures in the focus ROI in (a) phantom, and (b) pork after a 30 s sonication. Min/max and percentiles levels corresponding to 25, 50, 75% of voxels are plotted. Multi-focusing has lower peak temperature more voxels in the mild hyperthermia range. 5 W sonication data is omitted from (a) to prevent crowding. 60 W and 80 W single-focus sonications were not repeated in the scanner with pork due to formation of thermal lesions at 40 W