Skip to content

Magnetic Resonance Angiography (MRA), Upper Extremities — Without Contrast

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

An MRI-based exam that images blood vessels in one or both arms to evaluate narrowing, blockage, or other vascular abnormalities without iodinated contrast.

Quick summary

["This scan evaluates the blood vessels in the arms without using IV contrast."]

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

Key facts at a glance

LOINC
36548-6
Short code
MRA UE ves WO contr
Synonyms
MRA UE ves WO contr
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 imaging test that uses an MRI scanner and specially programmed images to show the arteries and veins of one or both arms. This version is performed without injected contrast material.

Why might I need this test?

Your clinician may order this scan to investigate reduced blood flow, unexplained swelling, pain, weakness, or a suspected blood-vessel problem in an arm or hand. It may also be used to monitor certain vascular conditions or plan treatment.

How is the test performed?

You will lie on an MRI table while the scanner creates detailed images of the blood vessels in the affected arm or arms. The test is generally painless, but the scanner is noisy and narrow, and you must remain still during image acquisition.

How do I prepare for the test?

Fastening is usually not required. Remove loose jewelry, metal accessories, and items with electronics before the scan, and tell the imaging staff about any implants, claustrophobia, or other health concerns. Follow your facility's specific instructions if they differ.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate narrowing or blockage of an artery or vein, an aneurysm, or a congenital blood-vessel abnormality. The results are interpreted together with your symptoms, examination, and other tests. A normal scan does not by itself exclude every possible vascular condition.

Short name

Upper-extremity MRA without contrast

Frequently asked questions

Is contrast material used for this scan?
No. This is a noncontrast MRA, so no iodinated contrast dye is injected and you generally will not need a separate contrast-related recovery period.
Is the test painful?
The scan itself is usually painless. Some people feel confined or anxious inside the MRI scanner, so tell the staff if you experience claustrophobia.
Do I need to stop taking my medicines?
Usually not. Continue taking medicines as directed unless your clinician or imaging center gives you different instructions.
  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