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Magnetic Resonance Angiography of the Spinal Vessels With Intravenous Contrast

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

An imaging test that uses magnetic resonance imaging and intravenous contrast to evaluate blood vessels supplying the spinal cord.

Quick summary

["This test helps identify problems with spinal blood flow and the vessels that supply the spinal cord."]

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

Key facts at a glance

LOINC
37501-4
Short code
MRA C-spine ves W contr IV
Synonyms
MRA C-spine ves 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?

Magnetic resonance angiography, or MRA, creates detailed images of blood vessels and blood flow. In this examination, the vessels supplying the spinal cord are evaluated using intravenous contrast.

Why might I need this test?

Your clinician may order this test to investigate symptoms that could involve impaired spinal cord blood flow, such as weakness, numbness, difficulty walking, or loss of bladder or bowel control. It may also be used to evaluate known vascular problems or plan treatment.

How is the test performed?

You will lie on a table inside a magnetic resonance scanner while images are acquired. Intravenous contrast may be injected through a vein, and the scan may take longer than a routine MRI. A radiologist interprets the images afterward.

How do I prepare for the test?

Follow the imaging center's instructions and tell the care team about contrast allergies, pregnancy, kidney disease, implanted medical devices, or metal in your body. You may be asked to avoid eating or drinking beforehand, depending on the facility's protocol.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate narrowing or blockage of a spinal vessel, an aneurysm, a vascular malformation, or altered blood flow related to another condition. Results should be interpreted by your clinician in combination with your symptoms, examination, and other imaging or laboratory tests.

Short name

Spinal MRA with IV contrast

Frequently asked questions

Is this the same as a routine spine MRI?
No. A routine MRI evaluates the spine and spinal cord, while MRA specifically focuses on blood vessels and blood flow.
Why is intravenous contrast used?
The contrast helps make blood vessels and their blood flow more visible in the images. Some examinations also obtain images before and after the contrast is given.
Are there risks from the contrast?
Most people tolerate the contrast well, but allergic-like reactions and kidney-related complications can occur. Tell the care team about previous contrast reactions, kidney disease, or pregnancy before the examination.
  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