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Medical ultrasound (also known as diagnostic sonography or ultrasonography) is a diagnostic imaging technique based on the application of ultrasound. It is used to see internal body structures such as tendons, muscles, joints,blood vessels and internal organs. Its aim is often to find a source of a disease or to exclude any pathology.
1 Detect abnormalities of heart structures such as the heart valves. ( 2 An ultrasound scan of the heart is called an echocardiogram 3  .). Help to diagnose problems of the liver, gallbladder (such as gallstones), pancreas, thyroid gland, lymph nodes, ovaries, testes, kidneys, bladder and breast.he way the ultrasound bounces back from different tissues can help to determine the size, shape and consistency of organs, structures and abnormalities. So, it can: 1  Help to monitor the growth of an unborn child, and check for abnormalities. 2  An ultrasound scan is routine for pregnant women.