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Magnetic Resonance Angiography of the Spinal Vessels — Without Contrast

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

An MRI-based examination that images blood vessels in and around the spine without injecting contrast dye.

Quick summary

["This test evaluates the spinal blood vessels and may help identify narrowing, aneurysms, or abnormal blood flow patterns."]

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

Key facts at a glance

LOINC
37510-5
Short code
MRA Spine ves WO contr
Synonyms
MRA Spine 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 MRI technique that highlights blood vessels in and around the spine. In this examination, contrast dye is not injected.

Why might I need this test?

Your clinician may order this test to evaluate the spinal circulation when symptoms suggest a vascular problem. It may help assess blood vessels for narrowing, aneurysms, abnormal connections, or other blood-flow patterns.

How is the test performed?

You will lie on a table inside an MRI scanner while images are collected. The scanner makes loud knocking and ringing sounds, and the technologist may ask you to remain still or change positions.

How do I prepare for the test?

Tell the imaging team about metal implants, medication patches, pregnancy, or claustrophobia. Remove items such as jewelry, keys, and cards with magnetic strips when directed. Because no contrast dye is used, contrast-related preparation is generally unnecessary.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate narrowing of a spinal blood vessel, an aneurysm, an abnormal vessel connection, or altered blood flow. Results should be interpreted together with symptoms, examination findings, and other imaging tests by your clinician.

Short name

Spinal MRA without contrast

Frequently asked questions

Does this test use radiation or contrast dye?
MRI does not use ionizing radiation, and this version of the test is performed without injected contrast dye.
Is the test painful?
The test is generally painless, although the confined scanner space, loud noises, and need to lie still may be uncomfortable for some people.
How long does the examination take?
The time varies by the facility and the complexity of the examination. Your imaging center can provide a more specific estimate before the test.
  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