Canadian Medical Guide > Physical Sciences > Natural Sciences > Physics > Acoustics > Ultrasonics Terms and Definitions




Ultrasonics

Medical Definition: That part of the science of acoustics dealing with the frequency range beyond the upper limit of perception by the human ear (beyond 20,000 hertz per second), but usually restricted to frequencies above 500,000 hertz per second. Ultrasonic radiation is injurious to tissues because of its thermal effects when absorbed by living matter, but in controlled doses it is used therapeutically to selectively break down tissues, as in treatment of arthritis and lesions of the nervous system, and also as a diagnostic aid by visually displaying echoes received from irradiated tissues, as in echocardiography and echoencephalography. (Dorland, 28th ed)
Guide Notes: /adv eff permitted but consider also ULTRASONOGRAPHY /adv eff & ULTRASONIC THERAPY /adv eff; ultrasonic or sonographic imaging of organs is organ /ultrasonogr
Also Called: Doppler Ultrasound
Ultrasonics Categories.
Canadian Medical Guide Definition Sonication

Ultrasonics Medical Definitions and Terms

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