: A test in which high-frequency sound waves (ultrasound) are bounced off tissues and the echoes are converted into a picture

Medical dictionary. 2011.

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  • Ultrasound-enhanced systemic thrombolysis — is a medical technology that utilizes transcranial doppler ultrasonography to treat stroke causing blood clots. It is thought that transcranial doppler ultrasonography aimed at residual obstructive intracranial blood flow may help expose thrombi… …   Wikipedia

  • Ultrasound (disambiguation) — Ultrasound is sound with a frequency greater than the upper limit of human hearing. Ultrasonic is an adjective referring to ultrasound.: Ultrasound and ultrasonic may also refer to: *Medical Sonography, sometimes called Medical ultrasonography,… …   Wikipedia

  • ultrasonography — [ul΄trəsə näg′rə fē] n. the technique of using ultrasound to form an image or picture ultrasonographic [ul΄trəsän΄ə graf′ik] adj …   English World dictionary

  • ultrasound — [ul′trə sound΄] n. 1. ultrasonic waves, used in medical and dental diagnosis and therapy, in cleaning and detecting flaws in metal, etc. 2. the use of ultrasonic waves in ultrasonography to form images of interior body organs, as the uterus or… …   English World dictionary

  • ultrasonography — The location, measurement, or delineation of deep structures by measuring the reflection or transmission of high frequency or ultrasonic waves. Computer calculation of the distance to the sound reflecting or absorbing surface plus the known… …   Medical dictionary

  • Ultrasound — High frequency sound waves. Ultrasound waves can be bounced off of tissues using special devices. The echoes are then converted into a picture called a sonogram. Ultrasound imaging, referred to as ultrasonography, allows physicians and patients… …   Medical dictionary

  • ultrasonography — sonography; n. the use of ultrasound to produce images of structures in the human body. The ultrasound probe sends out a short pulse of high frequency sound and detects the reflected waves (echoes) occurring at interfaces within the organs. The… …   The new mediacal dictionary

  • Ultrasound — Not to be confused with Supersonic .Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Although this limit varies from person to person, it is approximately 20 kilohertz (20,000 hertz) in healthy,… …   Wikipedia

  • ultrasound — /ul treuh sownd /, n. 1. Physics. sound with a frequency greater than 20,000 Hz, approximately the upper limit of human hearing. 2. Med. the application of ultrasonic waves to therapy or diagnostics, as in deep heat treatment of a joint or… …   Universalium

  • ultrasound — ultrasonic waves; n. sound waves of high frequency (above 20 kHz), inaudible to the human ear. Ultrasound in the range 2–20 MHz can be used to produce images of the interior of the human body as the waves reflect off structures back to the probe… …   The new mediacal dictionary

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