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Magnetic Resonance Imaging (MRI) of Head and Neck Blood Vessels, With and Without Intravenous Contrast

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

MRI evaluates blood vessels in the head and neck before and after intravenous contrast to help identify narrowing, blockage, or other vascular abnormalities.

Quick summary

["This MRI uses imaging sequences with and without IV contrast to assess blood vessels in the head and neck."]

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

Key facts at a glance

LOINC
105145-7
Short code
MRA Head+Neck Ves WO+W contr IV
Synonyms
MRA Head+Neck Ves WO+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?

This test uses magnetic resonance imaging to examine blood vessels in the head and neck. Images are acquired before and, when appropriate, after intravenous contrast is given.

Why might I need this test?

It may be ordered to evaluate symptoms such as severe headache, neck pain, dizziness, vision changes, weakness, or trouble speaking. It can also assess suspected narrowing, blockage, aneurysm, or dissection of blood vessels.

How is the test performed?

You lie on a table that moves into an MRI scanner. The scan may include several sequences, and intravenous contrast may be injected through a vein in your arm or hand. The test does not use ionizing radiation.

How do I prepare for the test?

Follow the imaging center's instructions and tell the staff about contrast allergies, kidney disease, pregnancy, claustrophobia, or any implanted medical devices. You may be asked to remove metal objects and may receive a gown before the scan.

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

Head and neck blood vessel MRI

Frequently asked questions

Does this MRI use radiation?
No. MRI uses magnetic fields and radio waves, not ionizing radiation.
Why are some images taken with and without contrast?
Images without contrast provide a baseline, while contrast-enhanced images can make blood vessels and certain abnormalities easier to evaluate.
Is an IV line required for this test?
Usually, because the examination includes contrast-enhanced images. The technologist will explain the IV placement and may provide contrast through a hand or arm vein.
  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