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| ultrasonograph | Computerised instrument used to create an image using ultrasound. Synonym: sonograph. Origin: ultra-+ L. Sonus, sound, + G. Grapho, to write (05 Mar 2000) |
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| ultrasonographer | A person who performs and interprets ultrasonographic examinations. Synonym: echographer, sonographer. (05 Mar 2000) |
| ultrasonography | <investigation, procedure> A technique in which high-frequency sound waves are bounced off internal organs and the echo pattern is converted into a 2 dimensional picture of the structures beneath the transducer. (12 May 1997) |
| ultrasonography, doppler | Ultrasonography applying the doppler effect, with frequency-shifted ultrasound reflections produced by moving targets (usually red blood cells) in the bloodstream along the ultrasound axis in direct proportion to the velocity of movement of the targets, to determine both direction and velocity of blood flow. (12 Dec 1998) |
| ultrasonography, doppler, colour | Ultrasonography applying the doppler effect, with the superposition of flow information as colours on a gray scale in a real-time image. This type of ultrasonography is well-suited to identifying the location of high-velocity flow (such as in a stenosis) or of mapping the extent of flow in a certain region. (12 Dec 1998) |
| ultrasonography, doppler, duplex | Ultrasonography applying the doppler effect combined with real-time imaging. The real-time image is created by rapid movement of the ultrasound beam. A powerful advantage of this technique is the ability to estimate the velocity of flow from the doppler shift frequency. (12 Dec 1998) |
| ultrasonography, doppler, pulsed | Ultrasonography applying the doppler effect, with velocity detection combined with range discrimination. Short bursts of ultrasound are transmitted at regular intervals and the echoes are demodulated as they return. (12 Dec 1998) |
| ultrasonography, doppler, transcranial | A non-invasive technique using ultrasound for the measurement of cerebrovascular haemodynamics, particularly cerebral blood flow velocity and cerebral collateral flow. With a high-intensity, low-frequency pulse probe, the intracranial arteries may be studied transtemporally, transorbitally, or from below the foramen magnum. (12 Dec 1998) |
| ultrasonography, interventional | Ultrasonography using invasive or surgical procedures. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions. (12 Dec 1998) |
| ultrasonography, mammary | Use of ultrasound for imaging the breast. The most frequent application is the diagnosis of neoplasms of the female breast. (12 Dec 1998) |
| ultrasonography, prenatal | The visualization of tissues during pregnancy through recording of the echoes of ultrasonic waves directed into the body. The procedure may be applied with reference to the mother or the foetus and with reference to organs or the detection of maternal or foetal disease. (12 Dec 1998) |
Synonyms : Computer Echotomography, Diagnosis, Ultrasonic, Ultrasonic Tomography, Diagnoses, Ultrasonic, Echotomographies, Imaging, Ultrasonic, Imagings, Ultrasonic, Ultrasonic Diagnoses, Ultrasonic Imagings
Synonyms :
Synonyms : Color Doppler Ultrasonography, Color Ultrasonography, Doppler, Doppler Color Ultrasonography, Ultrasonography, Doppler Color
Synonyms : Doppler Duplex Ultrasonography, Duplex Doppler Ultrasonography, Duplex Ultrasonography, Doppler, Ultrasonography, Doppler Duplex
Synonyms : Doppler Pulsed Ultrasonography, Pulsed Doppler Ultrasonography, Pulsed Ultrasonography, Doppler, Ultrasonography, Doppler Pulsed
| ultrasonography |
sonography: using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
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| ultrasonography |
(noun) use of ultrasound to produce an image or photogragh of an organ or tissue. Ultrasonic echoes are recorded as they strike different tissues of different densities. The image produced is called an ultrasonogram
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| ultrasonography |
a method of visualizing the internal parts of the body.
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| ultrasonography |
Process by which the reflection of high-frequency sound waves is used to develop an image of a structure.
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| ultrasonography |
UL-tra-son-OG-ra-fee A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echo patterns are shown on the screen of an ultrasound machine, forming a picture of body tissues called a sonogram. Also called ultrasound.
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| ultrasonograph | using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram) |
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