Magnetic Resonance Angiogram (MRA)
How It Feels
You won't have pain from the magnetic
field or radio waves used for the MRI test. The table you lie on may feel hard
and the room may be cool. You may be tired or sore from lying in one position
for a long time.
Some people feel discomfort or anxiety
(claustrophobia) inside the MRI magnet. If this keeps you from lying still, you
can be given a sedative to help you relax. Open MRI machines are less confining
than standard MRI and may be helpful if you are claustrophobic.
a contrast material is used, you may feel some coolness and flushing as it is
put into your IV. In rare cases, you may feel:
There is a slight risk of having an
allergic reaction if
contrast material is used during the MRA scan. Most
reactions can be controlled using medicine.
An MRI can cause a
burn with some medicine patches. Be sure to tell your doctor if you are wearing
If you have kidney
disease, such as kidney failure, talk to your doctor before having an MRA scan
with contrast material. The contrast material used for an MRA contains a
chemical called gadolinium. If you have kidney disease, this chemical may cause
a serious problem, called nephrogenic systemic fibrosis.
A magnetic resonance angiogram (MRA) is
a type of
magnetic resonance imaging (MRI) scan that uses a
magnetic field and pulses of radio wave energy to provide pictures of blood
vessels inside the body. The
radiologist may talk to you about the results of your
MRA right after the test. Complete results are usually available for your
doctor in 1 to 2 days.
Magnetic resonance angiogram (MRA)
The blood vessels look normal and the blood
flow through them is not reduced or stopped. No blood clots or large
plaque buildup is seen.
Blood vessel walls are normal. No bleeding,
abnormal collections of fluid, blockage in the flow of blood, or bulges in the
blood vessels (aneurysms) are present.
Partial or complete blockage of a blood
vessel may be seen. Blockage may be caused by a blood clot, the buildup of fat
and calcium deposits (plaque), or narrowing (stenosis) of the blood
A bulge (aneurysm) in the blood vessel wall
may be seen. Damage to the wall of a blood vessel may be seen.
Conventional angiogram or
a CT angiogram (computed tomography angiogram) may
be needed after MRA if a problem, such as an aneurysm, is found or if surgery
may be needed.