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Magnetic Resonance Angiography (MRA), Orbits — With Intravenous Contrast

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

An MRI uses contrast to create detailed images of blood vessels in and around the eye sockets, helping evaluate blood flow and vessel abnormalities.

Quick summary

["This test can identify problems with orbital blood vessels, including narrowing, blockage, or abnormal vessel formations."]

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

Key facts at a glance

LOINC
36832-4
Short code
MRA Orbit ves W contr IV
Synonyms
MRA Orbit 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?

Orbital magnetic resonance angiography is an imaging test that shows the blood vessels in and around the eye sockets. Intravenous contrast makes the vessels easier to see and helps assess how blood flows through them.

Why might I need this test?

Your doctor may order this test to investigate symptoms such as vision changes, eye pain, swelling, headaches, or abnormal eye movement. It may be used to evaluate blood-flow problems, blocked vessels, or the blood supply to an orbital mass.

How is the test performed?

You will lie on a moving table inside an MRI scanner. An intravenous line may be used to inject contrast, and several sets of images are taken while you remain still. The scan usually takes 20 to 60 minutes, depending on the examination.

How do I prepare for the test?

Follow your imaging center's instructions and tell the technologist about metal implants, medication patches, pregnancy, kidney disease, or previous contrast reactions. You may need to avoid eating or drinking for a short period before the scan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Orbit MRA with IV contrast

Frequently asked questions

Does this test use radiation?
No. MRI uses magnetic fields and radiofrequency signals rather than radiation, so there is no radiation exposure from the scan itself.
What is the difference between this test and a routine orbital MRI?
This test focuses on blood vessels and blood flow and usually includes intravenous contrast. A routine orbital MRI provides broader images of the eye sockets and surrounding tissues.
Are there risks from the intravenous contrast?
Most people tolerate the contrast well, but allergic-like reactions and kidney-related complications can occasionally occur. Notify the imaging staff if you have had a previous contrast reaction or have kidney disease.
  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