The induction of hyperthermia by ultrasound; its value and associated problems: II. Scanned-plane transducer

Phys Med Biol. 1985 Dec;30(12):1327-33. doi: 10.1088/0031-9155/30/12/006.

Abstract

A system is described in which large superficial areas of tissue may be heated using a single plane ultrasonic transducer scanned in a raster fashion. The shape of the heated area is determined by the movement of a microswitch which is activated when it strikes the rigid edge of a hole of the required shape cut in a plate. Temperature profiles are presented. They are measured in pig thigh muscle, and are generated by 0.75 and 3.0 MHz ultrasound scanned over areas up to 7 cm X 7 cm. It was found that uniform heating could be obtained over the area scanned by the central portion of the ultrasonic beam.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Body Temperature
  • Hyperthermia, Induced* / adverse effects
  • Muscles / physiology
  • Swine
  • Time Factors
  • Ultrasonics*