title: Considerations in ultrasound therapy and equipment performance.
abstract: A regulatory performance standard for ultrasound therapy equipment has been published by the Bureau of Radiological Health under the authority of The Radiation Control for Health and Safety Act of 1968. To clarify this standard and its intents, a number of topics relevant to the use of ultrasound in physical therapy are discussed, including the physics of ultrasound, equipment output measurements, and the harmful biological effects of ultrasound.
mesh_terms: D000818:Animals; D006801:Humans; D055585:Physical Phenomena; D010825:Physics; D014464:Ultrasonic Therapy / Q000009:adverse effects / Q000295:instrumentation*