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Deep local hyperthermia for cancer therapy: external electromagnetic and ultrasound techniques Cheung AY; Neyzari ACancer Res 1984[Oct]; 44 (10 Suppl): 4736s-4744sExternal heating techniques for delivery of localized hyperthermia in patients are reviewed. This paper covers microwaves, radiofrequency, and ultrasound methods. Fundamental principles governing tissue absorption, guidelines for applicator selection and design, and restrictions of each heating approach are discussed. Innovative techniques utilizing multiple applicators to achieve better heating uniformity are also presented. The advantages and disadvantages of electromagnetic versus ultrasound heating techniques are compared as a conclusion to this review.|*Ultrasonic Therapy[MESH]|Electromagnetic Phenomena[MESH]|Humans[MESH]|Hyperthermia, Induced/instrumentation/*methods[MESH]|Mathematics[MESH]|Microwaves[MESH]|Neoplasms/*therapy[MESH]|Radio Waves[MESH]|Thermodynamics[MESH] |
