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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...
Your doctor may order an ultrasound if you're experiencing pain, swelling, or other symptoms that require an internal view of your organs. Learn more.
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.