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Magnetic Resonance Angiography (MRA), Upper Extremity Blood Vessels — With or Without IV Contrast

Published: August 9, 2026Updated: August 16, 2026

An MRI-based examination of the blood vessels in one or both arms to evaluate narrowing, blockage, aneurysms, and other vascular abnormalities.

Quick summary

["This test uses MRI to evaluate the arteries supplying the arm and may include intravenous contrast."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
36417-4
Short code
MRA UE vv WO+W contr IV
Synonyms
MRA UE vv WO+W contr IV
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr-angio
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

Upper extremity magnetic resonance angiography is an MRI test that creates detailed images of the blood vessels in one or both arms. Depending on the examination ordered, it may be performed with or without intravenous contrast.

Why might I need this test?

It may be used to investigate reduced blood flow, a weak or absent pulse, arm pain, hand fatigue, swelling, or symptoms suggesting an arterial problem. It can also assess blood vessels before certain procedures or monitor a known condition.

How is the test performed?

You will lie still inside an MRI scanner while images of the arm vessels are acquired. If contrast is used, it is given through an intravenous line in the arm; the scan usually takes longer with contrast.

How do I prepare for the test?

Tell the imaging team about metal implants, medication patches, pregnancy, kidney disease, and any prior contrast reaction. Remove loose metal objects and follow the facility's instructions about eating, drinking, and taking medications.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate arterial narrowing, blockage, aneurysm, dissection, or another blood-vessel abnormality. The results should be interpreted by your clinician together with your symptoms, examination, and other imaging or laboratory tests.

Short name

Upper Extremity MRA

Frequently asked questions

Does an MRA use radiation?
No. MRI-based angiography does not use ionizing radiation, although contrast-enhanced imaging may require an intravenous injection.
Is intravenous contrast always required?
No. The protocol may be performed with or without contrast, depending on the reason for the examination and the imaging center's protocol.
What if I am pregnant or have kidney disease?
Notify the imaging team before the test. These factors may affect whether contrast can be used safely or whether an alternative protocol is needed.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy