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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.
The American Registry for Diagnostic Medical Sonography (ARDMS), incorporated in June 1975, is an independent nonprofit organization that administers examinations and awards credentials in the areas of diagnostic medical sonography, diagnostic cardiac sonography, vascular technology, physicians’ vascular interpretation, musculoskeletal sonography and midwifery ultrasound.
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.
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 ...
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.
On July 1, 2003, Career Education Corporation merged with competitor Whitman Education Group, Inc., gaining control over the latter's Sanford-Brown Colleges, Ultrasound Diagnostic Schools (later known as the Sanford-Brown Institute), and Colorado Technical University. They also obtained the former Western School of Health and Business. [4]
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