High Intensity Focused Ultrasound - Ultrasound is the name of equipment that produces many types of sound which can be used for imaging and/or treatment. It has many medical applications. Ultrasound - using high intensity sound – creates heated beams of sound for treatment. In High Intensity Focused Ultrasound, heated beams of sound are focused onto diseased tissue, such as cancer and heat it to a point where it is removed (ablated).