Magnetic Resonance Imaging

An MRI uses magnetic waves and computers to make pictures of the inside of the body. It can make two-dimensional and three-dimensional pictures.

  • Call Your Doctor

    After the test, call your doctor if any of the following occurs:

    • Worsening of symptoms
    • Any allergic or abnormal symptoms, like getting a rash or swelling if you were injected with contrast dye

  • Definition

    An MRI uses magnetic waves and computers to make pictures of the inside of the body. It can make two-dimensional and three-dimensional pictures.

  • What to Expect

  • Reasons for Test

    You may have an MRI to diagnose a condition or look for internal injuries. MRIs can look at any body part, from your head to your toes. MRIs can also be used to see if medication or treatment is working for a specific disease like cancer.

    MRI of Brain Injury
    nucleus factsheet image
    Copyright © Nucleus Medical Media, Inc.

  • Possible Complications

    MRIs can be harmful if you have metal inside your body including:

    • Medical devices likes pacemakers, ear implants, insulin pumps, and shunts
    • Joint replacements, plates, or metal pins
    • Metal objects or fragments in your body—An x-ray may be done before the MRCP.

    Make sure your doctor knows of any internal metal before the test.

    If you are pregnant or think you may be pregnant, talk to your doctor before the MRI scan about whether an MRI scan is right for you.

    A contrast dye may be used to enhance some images. Some people may have a bad reaction to this dye. Talk to your doctor about any allergies you have or if you have liver or kidney problems. Liver and kidney problems may make it difficult for your body to get rid of the contrast.