Application of electric and acoustic impedance measuring techniques to problems in diathermy

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics

Vol. 72 (2) , 106-110
https://doi.org/10.1109/tce.1953.6371982

Abstract

DIATHERMY, or heating of deep tissues, must be accomplished through the absorption of radiant energy in the region to be heated. Conduction methods such as infrared or hot packing fail because of the rapid convection of heat by the flow of blood. Conventionally diathermy has come to be synonymous with high-frequency electromagnetic heating. Recently, however, ultrasonic energy has been introduced to accomplish a somewhat similar clinical purpose.

Keywords

IMPEDANCE
ABSORPTION
BLOOD
CATHODES
ELECTRON TUBES
ACOUSTICS
FREQUENCY MEASUREMENT