MR Angiography Without and With Dye - Head

This test uses magnets and radio waves to create detailed images of the blood vessels in the head.




This test uses magnets and radio waves to create detailed images of the blood vessels in the head.



Magnetic Resonance Angiography (MRA) of the head is a test that uses magnets and radio waves to create detailed images of the blood vessels in the head.

  • Your healthcare provider will do the MRA both before and after injecting a dye into a vein in your arm or hand.
  • The dye helps to highlight the blood vessels in your head, so they can be seen better.

A healthcare provider may order this MRA to check the blood vessels in the head for:

  • Blood clots
  • Blockages
  • Other abnormalities or problems

MRA 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.
  • MRA 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
MRA Head
MR Angiography Without and With Dye - Head
Head Scan
Head MRA
Head Angiography
Angiography Head
Angiogram


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