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Magnetic Resonance Angiography (MRA) of Ankle Vessels Without Contrast

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

An MRI-based examination that creates images of blood vessels in the ankle and lower leg without injected contrast material.

Quick summary

["This test helps evaluate the blood vessels around the ankle for narrowing, blockage, or other abnormalities."]

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

Key facts at a glance

LOINC
36879-5
Short code
MRA Ankle ves WO contr
Synonyms
MRA Ankle 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?

Magnetic resonance angiography, or MRA, is an imaging test that uses a strong magnetic field and radio waves to show blood vessels in the ankle and lower leg. This version is performed without injected contrast material.

Why might I need this test?

Your clinician may order this test to investigate reduced blood flow, numbness, coolness, swelling, or pain in the foot or ankle. It may also be used to assess vessels after an injury or before certain procedures.

How is the test performed?

You will lie on a table inside an MRI scanner while a technologist captures images of the ankle region. The scanner may make loud knocking sounds, and you may be asked to remain still. No contrast dye is injected for this examination.

How do I prepare for the test?

Follow the imaging center's instructions, including any limits on eating, drinking, or wearing items containing metal. Tell the staff about metal implants, medication patches, claustrophobia, pregnancy, or the possibility of pregnancy before the scan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate narrowing, blockage, an enlarged vessel, or other problems affecting blood flow in the ankle. Results are interpreted together with your symptoms, physical examination, and other imaging tests. Your clinician can explain what any abnormality means for your care.

Short name

Ankle MRA without contrast

Frequently asked questions

Is contrast material used in this MRA?
No. This version is performed without injected contrast material, although the MRI scanner still uses a magnetic field and radio waves to create images.
Will the test be painful?
MRI imaging itself is generally painless. The scanner can be noisy, and staying still in a narrow space may feel uncomfortable for some people.
How soon will I receive the results?
A radiologist or other qualified specialist usually reviews the images and sends a report to your ordering clinician. The timing of results and any follow-up discussion depend on your care team.
  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