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The American Society of Ultrasound Technical Specialists, now the Society of Diagnostic Medical Sonography, was founded in 1970 as the primary professional society for sonographers. [3] The two credentialing bodies in the United States for sonographers are the Cardiovascular Credentialing International established in 1968 and the American ...
Diagnostic medical sonography (DMS), a branch of diagnostic medical imaging, is the use of imaging by medical ultrasound for medical diagnosis. DMS uses non-ionizing ultrasound to produce 2D and 3D images of the body. In Canada, the credentialing for diagnostic medical sonography is the Canadian Association of Registered Ultrasound Professionals.
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
Ultrasound is defined by the American National Standards Institute as "sound at frequencies greater than 20 kHz". In air at atmospheric pressure, ultrasonic waves have wavelengths of 1.9 cm or less. Ultrasound can be generated at very high frequencies; ultrasound is used for sonochemistry at frequencies up to multiple hundreds of kilohertz.
Technicians who use ultrasound to examine the heart chambers, valves, and vessels are referred to as cardiac sonographers. [1] They use ultrasound instrumentation to create images called echocardiograms. An echocardiogram may be performed while the patient is either resting or physically active. Technicians may administer medication to ...
Sonogram may refer to: S.O.N.O.G.R.A.M., a 2005 album by One Be Lo; Sonograph, a term used for an audio-frequency spectrogram, a visual representation of the spectrum of frequencies in a sound; Ultrasonogram, a diagnostic imaging technique based on the application of ultrasound
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