title: The induction of hyperthermia by ultrasound: its value and associated problems. I. Single, static, plane transducer.
abstract: The temperature distributions that may be achieved in mammalian tissues by ultrasonic heating have been studied. Thigh muscle of Large White pigs has been irradiated with 0.75 and 3.0 MHz ultrasound at spatial average intensities in the range 1.5-3.0 W cm-2 in both pulsed and continuous modes of delivery. Resultant temperature profiles are described and some of the problems arising are discussed.
mesh_terms: D000818:Animals; D003972:Diathermy / Q000295:instrumentation*; D005260:Female; D013552:Swine; D014159:Transducers; D014464:Ultrasonic Therapy / Q000295:instrumentation*