HIFU utilizes intersecting beams of ultrasound waves to create a high
intensity focal point. When the focus is located in soft tissue, the
acoustic energy is absorbed and converted into heat. Beyond a certain
threshold, this heat causes thermal coagulation of the tissue resulting
in localized cell death. The key advantage of HIFU is that it is
noninvasive. It does not require skin puncture and healthy tissue in the
ultrasound near Þeld is left undamaged by the treatment.