Previous studies showed that ultrasound can mechanically remove tissue in a localized,
controlled manner. Moreover, enhanced acoustic backscatter is highly correlated with the
erosion process.“Initiation” and “extinction” of this highly backscattering environment were
studied in this paper. The relationship between initiation and erosion, variability of initiation
and extinction, and effects of pulse intensity and gas saturation on time to initiation (initiation
delay time) were investigated. A 788-kHz single-element transducer was used. Multiple …