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Head Magnetic Resonance Angiography with Intravenous Contrast (Deprecated Test Name)

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

A magnetic resonance imaging test that shows blood vessels in the head, with contrast injected into a vein to improve vessel visibility.

Quick summary

["This test uses MRI and intravenous contrast to evaluate blood vessels in the head."]

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

Key facts at a glance

LOINC
24747-8
Short code
Deprecated Head.SS MR.angio W contr IV
Synonyms
Deprecated Head.SS MR.angio W contr IV
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
135
Ref high
980
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr-angio
CPT
82626
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?

Head magnetic resonance angiography, or MRA, is an imaging test that uses an MRI scanner to examine blood vessels in the head. Intravenous contrast may be given through a vein to make the vessels and blood flow easier to see.

Why might I need this test?

This test may be ordered to evaluate suspected narrowing, blockage, aneurysm, or other abnormalities of blood vessels in the head. It may also be used in emergency settings when stroke or another sudden neurological symptom is suspected.

How is the test performed?

You will lie on a table inside an MRI scanner while several images are taken. If intravenous contrast is used, it is usually injected into a vein in your arm or hand, and additional images are then obtained.

How do I prepare for the test?

Follow the imaging center's instructions and tell the staff about any implanted metal devices, prior reactions to contrast, kidney disease, or possible pregnancy. The MRI area may also require you to remove items containing metal, such as jewelry, watches, and cards with magnetic strips.

Reference range

NCBI: DHEA-S Male 135-980 µg/dL; Female 30-260 µg/dLN/A

Specimen: serum

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Head MRA with IV contrast

Frequently asked questions

Is this the same as a routine head MRI?
No. MRA is focused on blood vessels and uses a special MRI technique, often with intravenous contrast, to evaluate the arteries and sometimes the veins of the head.
Does the test use radiation?
MRI does not use ionizing radiation. It uses a strong magnetic field and radiofrequency pulses to create images.
Why does the test name say "deprecated"?
Deprecated means this is a legacy test name and newer terminology may be used for the same or a similar imaging procedure. Your imaging center can confirm the exact current order.
  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