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The reflected ultrasound is received by the probe, transformed into an electric impulse as voltage, and sent to the engine for signal processing and conversion to an image on the screen. The depth reached by the ultrasound beam is dependent on the frequency of the probe used. The higher the frequency, the lesser the depth reached. [9]
Methodist University Hospital is a hospital located in Memphis, Tennessee which is a part of Methodist Le Bonheur Healthcare. It is affiliated with University of Tennessee Health Science Center as a teaching hospital. The hospital focuses on oncology, cardiology, head and neck surgery, neurology and transplants.
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.
John Julian Cuttance Wild (August 11, 1914 – September 18, 2009) was an English-born American physician who was part of the first group to use ultrasound for body imaging, most notably for diagnosing cancer. Modern ultrasonic diagnostic medical scans are descendants of the equipment Wild and his colleagues developed in the 1950s.
The hemoglobin distribution in carotid arteries of healthy humans has recently been imaged in real time using a hand-held device similar to diagnostic ultrasound systems currently in the clinic. [16] [20] [64] The ability to image blood vessels in hands and feet may be useful for assessing peripheral vascular disease. [2] [20]
George Döring Ludwig, M.D. (January 4, 1922 [1] – November 24, 1973) was an American Professor and Chairman of medicine and medical researcher, noted for developing the first application of ultrasound to the human body for medical purposes at the Naval Medical Research Institute, Bethesda, Maryland, in the late 1940s.
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 ...
The ultrasound within tissue consists of very high frequency sound waves, between 800,000 Hz and 20,000,000 Hz, which cannot be heard by humans. Some of the advantages of ultrasound as a diagnostic and therapeutic tool include its safety profile, lack of radiation, portability, and low cost. [4]