Ultrasound

Ultrasound imaging, also called ultrasound scanning or sonography, involves exposing part of the body to high-frequency sound waves to produce pictures of the inside of the body. Ultrasound exams do not use ionizing radiation (as used in x-rays). Because ultrasound images are captured in real-time, they can show the structure and movement of the body's internal organs, as well as blood flowing through blood vessels.

Ultrasound imaging is a noninvasive medical test that helps physicians diagnose and treat medical conditions. An example is abdominal ultrasound, where a sonographer produces pictures of the internal organs and blood vessels located within the abdomen. A Doppler ultrasound study may be part of an abdominal ultrasound examination. Doppler ultrasound is a special ultrasound technique that evaluates blood flow through a blood vessel, including the body's major arteries and veins in the abdomen, arms, legs and neck. Ultrasound is also a useful tool in image guided medical device placement, needle biopsies and fluid aspiration.

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