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Magnetic Resonance Angiography, Neck Vessels — with Intravenous Contrast

Published: August 9, 2026Updated: August 17, 2026

An MRI-based imaging test that evaluates the blood vessels in the neck, including the carotid and vertebral arteries, using intravenous contrast.

Quick summary

["This test helps doctors assess the structure and blood flow of major blood vessels in the neck."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
24844-3
Short code
MRA Neck ves W contr IV
Synonyms
MRA Neck ves W contr IV
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
22
Ref high
198
Critical range
— – 10000 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr-angio
CPT
82553
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 creates detailed pictures of blood vessels without using X-rays. When intravenous contrast is used, it may help show narrowing, blockage, or other abnormalities in the major arteries of the neck.

Why might I need this test?

A doctor may order this test to investigate symptoms such as neck or head pain, weakness, vision changes, dizziness, or difficulty speaking. It may also be used to monitor known blood-vessel conditions or plan treatment for a suspected problem.

How is the test performed?

You lie on a table inside an MRI scanner while images of the neck blood vessels are taken. Intravenous contrast is given through a vein in your arm, and the scan usually takes about 30 to 60 minutes. You may be asked to remain still and may receive instructions to hold your breath briefly.

How do I prepare for the test?

Follow the imaging center's instructions and tell the staff if you have a contrast allergy, kidney disease, pregnancy, or any implanted medical devices. Remove jewelry, keys, cards, and other metal objects before the scan. Tell the staff if you are claustrophobic; comfort measures or sedation may be available.

Reference range

Adult males: 22-198 U/L; Females: 22-198 U/LN/A

Specimen: serum

No special preparation required. Inform provider of any chest pain or symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Contrast-enhanced MRA of the neck vessels

Frequently asked questions

Does this test use radiation?
No. MRA uses magnetic fields and radio waves rather than ionizing radiation, although the contrast material given through the vein may be used.
Is intravenous contrast always required?
This version of the test is specified with intravenous contrast. Some MRA examinations can be performed without it, depending on the clinical question and the imaging center's protocol.
Is the MRA scan painful?
The scan itself is generally painless, but the MRI machine can be noisy and feel confined. The intravenous injection may cause a brief cool or warm sensation.
  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 17, 2026. · Read our editorial policy