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Health & Fitness > Health Care The role of vascular ultrasound for evaluating vascular disease

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Ultrasound is the use of high-frequency sound waves (thus its name) to produce images of structures within the human body. Ultrasound imaging was first discovered in 1952 and used clinically in 1962. Non-ionizing sound waves in the typical frequency of 1 to 10 MHz above the range of sound audible to humans is used. Basically, echoes from discontinuities in tissue density or the speed of sound are registered. The imaging volume is about 20 cm and its resolution is high in the mm range. The more common ultrasound imaging applications are imaging soft tissue, blood flow based on Doppler shift ...

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