Impact of cavitation on lesion formation induced by high intensity focused ultrasound |
(color online) Lateral and longitudinal cross-section images of the lesions in the gel phantoms exposed to HIFU with the fixed pulse length 2000 cycles and varied acoustic pressures: (a) 6.25 MPa, (b) 7.5 MPa, (c) 8.75 MPa, and (d) 9.92 MPa. |