THE ULTRASONIC irradiation of the vestibular labyrinth has been a useful procedure for the control of Meniere's disease (Arslan,1 Altmann and Waltner,2 Ironside and Lindsay,3 James,4 Basek5). Arslan showed in a statistical study that the preservation of hearing is not only a theoretical consideration but a practical goal. He has shown, by the usual labyrinthine tests, that in the majority of cases, six months following surgery, the labyrinth is either destroyed or hypoactive.The principal characteristics of ultrasound vibrations are (1) the propagation of ultrasound follows a straight line, whereas audible sound waves spread in a spherical form; (2) the propagation requires a liquid or solid medium; (3) the vibrations are absorbed by an air barrier; and (4) the absorption coefficient of ultrasound vibrations for living tissue is in direct proportion to the increase of frequency.Brain et al,6 using the cat as
GIANCARLO H, CHOO YB, WOLFF D, BISI RH, WEYMULLER EA. Vestibular Changes Following Ultrasonic Irradiation. Arch Otolaryngol. 1965;82(4):365–375. doi:10.1001/archotol.1965.00760010367006
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