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Home >> Mercy Neurological Institute >> Multiple Sclerosis (MS) >> Before Your MRI Procedure

Before Your MRI Procedure


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Magnetic resonance imaging (MRI) is a test that lets your doctor see detailed pictures inside the body. MRI combines the use of strong magnets and radio waves to form an image.

Before Your Test

  • The test takes 30-60 minutes. Allow extra time to check in
  • MRI uses strong magnets, so remove all watches, jewelry and other metal objects
  • You may be asked to remove makeup, which may contain some metal

The magnet used in MRI can cause metal objects in the body to move. You may be asked any of the following:

  • If you've had any previous surgery
  • If you have a pacemaker or other implants
  • Metal splinters in your body
  • Tattoos

Technologists will also ask whether:

  • You're pregnant or think you may be
  • You're claustrophobic (afraid of confined spaces)

During Your Test

  • You may be asked to wear a hospital gown
  • You may be injected with contrast (a special "dye" that improves the MRI image)
  • You'll lie down on a platform that slides into the magnet

After Your Test

  • You can get back to normal activities right away. If you were given contrast, it will pass naturally through your body within a day
  • Your doctor will discuss the test results with you during a follow-up appointment or over the phone
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