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 acoustic pressure of 7.5 MPa and varied pulse lengths: (a) 2000 cycles, (b) 3000 cycles, (c) 4000 cycles, and (d) 6000 cycles. |