Figure 4
From: Timing of high-intensity pulses for myocardial cavitation-enabled therapy
Photomicrographs of the effects of the treatment on the heart. The beam entry for this heart from part 1 of the study is evidenced by a red marking (a, scale bar 2 mm), which was due to numerous capillary hemorrhages within the myocardium (b, scale bar 0.5 mm). For a heart from part 2, a similar mark appears on the heart except for blue staining of injured cardiomyocytes (c, scale bar 2 mm), which are shown in a frozen section by red fluorescence (d, scale bar 2 mm).