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Magnetic Resonance Angiography, Cervical Spine Vessels — With and Without Intravenous Contrast

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

An MRI-based angiogram evaluates blood vessels in the cervical spine region, using images before and after IV contrast when ordered.

Quick summary

["This test uses MRI to assess blood flow and the condition of blood vessels in the cervical spine region."]

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

Key facts at a glance

LOINC
37506-3
Short code
MRA C-spine ves WO+W contr IV
Synonyms
MRA C-spine ves 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?

Magnetic resonance angiography, or MRA, creates detailed images of blood vessels in the cervical spine region without using X-rays. The examination may include images both before and after intravenous contrast is given.

Why might I need this test?

This test may be ordered to evaluate suspected problems with blood vessels supplying the head, neck, or spinal cord. It may be used to investigate symptoms such as dizziness, visual changes, weakness, numbness, or difficulty with balance.

How is the test performed?

You lie on a table inside an MRI scanner while the machine creates images of the cervical spine and nearby blood vessels. If contrast is used, it is given through a vein in your arm, and additional images are taken afterward.

How do I prepare for the test?

Follow the imaging center's instructions, and tell the staff about any metal implants, prior contrast reactions, kidney disease, or possibility of pregnancy. Fasting is generally not required unless specifically requested, and safety screening is completed before entering the scanner.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate narrowing or blockage of a blood vessel, an aneurysm, or an abnormal connection between vessels. Results should be interpreted by your clinician alongside your symptoms, examination, and any other imaging or laboratory tests.

Short name

MRA of cervical spine vessels

Frequently asked questions

Does this test use radiation?
No. MRA uses magnetic fields and radio waves rather than ionizing radiation.
Why are some images taken before and after contrast?
The initial images provide a baseline, while contrast-enhanced images help show blood vessels and blood flow more clearly.
Is intravenous contrast always required?
No. The protocol may include contrast with and without it, depending on the reason for the examination and the order from your clinician.
  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