Figure 4From: Estimating dynamic changes of tissue attenuation coefficient during high-intensity focused ultrasound treatmentLesion growth in ex vivo porcine muscle tissue in conventional B-mode images. (A) The duty cycle was 77%, resulting in TAP of 49 W and average focal intensity of 1,068 W/cm2 at the HIFU treatment site, for a total HIFU treatment time of 40 s. (B) Axial section of the lesion induced.Back to article page