Fig. 7
From: Multi-focal HIFU reduces cavitation in mild-hyperthermia
Zoomed view of the center slice (sagittal) of MR mapping volumes for 20 W and 40 W sonications in pork after 30 s of HIFU. The arrow indicates direction of HIFU propagation. The dotted line represents ROI cross-section. Note: after sonicating at 40 W a surface lesion was observed at the pork interface (bottom of the ROI in (c)). Note: the color scale has been windowed to 0–20 °C to emphasize contrast in multi-focal sonications