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Effects of USMB treatment on tumor blood perfusion with various levels of acoustic pressure. (A) Representative B-mode and CEUS images of the tumor from one animal in each group. Scale bar = 0.5 cm. (B) Quantitative analysis of the change in tumor blood perfusion. *p < 0.05 vs. PIpre, #p < 0.05 vs. the MBs group. PI, peak intensity.
