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An ultrasound scan is a medical test that uses high-frequency sound waves to capture live images from the inside of your body. The technology is similar to that used by sonar and radar, which help the military detect planes and ships. An ultrasoun...
A CT scan is a series of cross-sectional X-ray images of the body. Learn why a CT scan is performed and what to expect during a CT scan.
A magnetic resonance imaging (MRI) scan is a noninvasive test that uses magnets and radio waves to create images of the inside of your body. It allows doctors to see details of your organs and tissues without having to make any incisions. Accordin...