Magnetic resonance imaging (MRI) is a painless test that uses magnets and radio waves to create a detailed picture of soft tissues and organs in your body. Unlike an X-ray, it does not use radiation. During this test, you’ll be positioned on a narrow table that slides through the opening of the tunnel-shaped scanner. In some cases, you’ll have a special dye injected into a vein in your hand or forearm, which helps certain parts of the scan stand out from others. MRIs take about 30 to 60 minutes to complete.
Evaluate changes after surgical procedures