Fig. 110 (abstract O81).
From: International Society for Therapeutic Ultrasound Conference 2016
Acoustic pressure waveforms simulated at the maximum of heat deposition in tissue for different intensities at the array elements: 1.2 W/cm2 (red curve), 4, 5, 6, 7, 8 W/cm2 (pink curve), 10, 12, and 15 W/cm2 (blue curve). Dashed curve is the focal waveform for 1.2 W/cm2 simulated linearly. While quasilinear regime of focusing with slightly distorted focal waveform is realized for initial intensity of 1.2 W/cm2, high amplitude shocks are formed at intensities of 8 W/cm2 (95 MPa) and 15 W/cm2 (118 MPa)