MRI Scan Without and With Dye - One Breast

This test uses magnets and radio waves to create detailed images of the structures in the breast.




This test uses magnets and radio waves to create detailed images of the structures in the breast.



A Magnetic Resonance Imaging (MRI) scan of a breast is a test that uses magnets and radio waves to create detailed images of the structures in the breast. A healthcare provider may order a MRI to:

  • Provide more information about precancerous changes in the breasts or a previously diagnosed breast cancer
  • Evaluate breasts that are very dense
  • See if an implant has ruptured

Mammography is the most recommended imaging study for breast cancer screening. However, if you are at high risk for breast cancer, your healthcare provider may recommend an MRI scan of your breast to screen for the disease.

MRI machines use powerful magnets, so tell your health care provider if you have any metal or medical devices in your body.

  • Your healthcare provider may tell you not to eat or drink for at least four hours before the test.
  • The technician will inject a contrast dye into a vein in your arm or hand.
  • The contrast dye may cause you to feel flushed or to have a bad taste in your mouth for a short time.
  • If you have an allergy to iodine, shellfish or contrast dye tell your healthcare provider before the test. He or she may order a different test or have you take a medication to prevent a reaction.
  • You must lie still during the exam, because moving could blur the images.
  • If you are pregnant and your health care provider feels an MRI would give helpful information, he or she may order this test. Be sure to talk about the benefits and risks of the test with your health care provider.
  • An MRI can take up to an hour, but newer machines may be much faster.

The costs for this test include the charge for the test (facility charge) and physician charges (for performing or interpreting the test). You may get separate bills from the facility and the physician's office.

What should I ask my health care provider before having this test?

  • Is there any special preparation for the test? (If so, get clear instructions on what you need to do.)
  • What is my diagnosis and the reason for the test? Are the test results likely to change my treatment plan? If not, do I need the test?
  • Are there any less expensive, but effective, alternatives to my getting this test?

Remind your health care provider if there are any metal(s) or medical device(s) in your body.

Source UHC.com

Also known as:

MRI Scan Without and With Dye - One Breast
MRI Scan
MRI Breast
Breast Scan
Breast MRI


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