Focussed ultrasound tissue treatment method

摘要

A method of treatment of tissue with focussed ultrasound comprises placing adjacent the tissue to be treated a reflector of ultrasound or an ultrasound energy conversion device which converts received ultrasound energy to heat, stores the heat and then releases the heat over time into the tissue to be treated. An ultrasound transducer is then oriented with its focal point adjacent the reflector or ultrasound energy conversion device. The tissue is then irradiated with high intensity focussed ultrasound while the reflector or ultrasound energy conversion device is in place.