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Magnetic Resonance Angiography, Chest Vessels, with Intravenous Contrast

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

An imaging test that uses magnetic fields, radio waves, and IV contrast to show blood vessels in the chest.

Quick summary

["This test helps evaluate the chest's blood vessels for narrowing, blockage, or abnormal bulging."]

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

Key facts at a glance

LOINC
24659-5
Short code
MRA Chest ves W contr IV
Synonyms
MRA Chest 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?

Chest magnetic resonance angiography, or MRA, creates detailed images of blood vessels in the chest. Intravenous contrast may be used to make the vessels and blood flow easier to see. This is an imaging test rather than a blood test.

Why might I need this test?

A chest MRA may be ordered to evaluate suspected narrowing or blockage of major blood vessels, aneurysms, blood clots, or congenital blood-vessel abnormalities. It may also be used to plan treatment or monitor an existing condition.

How is the test performed?

You lie on a table inside an MRI scanner while images are taken. If contrast is used, it is given through a vein in your arm. You may be asked to hold still or follow breathing instructions, and the scan usually takes 30 to 60 minutes.

How do I prepare for the test?

Follow the imaging center's instructions, including any fasting or medication guidance. Tell the care team about contrast allergies, kidney disease, pregnancy, implanted medical devices, or metal in your body before the scan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Chest MRA with IV contrast

Frequently asked questions

Is chest MRA the same as a CT angiogram?
No. Both show blood vessels, but MRA uses a magnetic field and radio waves rather than ionizing radiation. Your clinician chooses the study based on the body area, clinical situation, and imaging needs.
Does chest MRA use radiation?
No. MRA does not use ionizing radiation, although injected contrast may be part of the examination.
Why is intravenous contrast used?
The contrast helps make blood vessels and blood flow more visible. Tell the imaging team if you have previously had a significant reaction to contrast or have been told that you have contrast allergy.
  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