What is Ultrasound?
Ultrasound, also known as sonography or ultrasonography, is an imaging method that uses high-frequency sound waves to produce images of structures within the body. The sound waves are directed into the body with a transducer, which is a small hand-held wand that the technologist uses to perform the examination. The sound waves reflect off internal structures, and a computer processes the returning echoes to produce real-time moving images. Ultrasound is commonly used to evaluate the thyroid gland, breasts, abdominal and pelvic organs, and testes, as well as blood flow in arteries and veins.