Figure 1.
Theoretical thresholds for inertial cavitation of optimally sized air bubbles in materials with various viscoelastic properties for a threshold criterion of Tmax = 5000 K. A, Thresholds calculated assuming pressure durations of 1 acoustic period. B, Normalized (by data from 1 acoustic period in A) thresholds for inertial cavitation in each material at a pulse length of 100 acoustic periods. Curves are the best fits of Pt = Bfcn to the numerical data for water (●) blood (○), heart (□), kidney (■), liver (▽), skeletal muscle (▲), and skin (+). The average value for n (the power of frequency) for the combined curves was 0.75.15