Magnetic Resonance Angiography, Heart, with Intravenous Contrast
An MRI-based imaging test that uses intravenous contrast to examine blood vessels and blood flow in and around the heart.
["This test helps identify narrowing, blockage, or other abnormalities in the heart's blood vessels."]
Key facts at a glance
- LOINC
- 105171-3
- Short code
- MRA Hrt W contr IV
- Synonyms
- MRA Hrt 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?
Magnetic resonance angiography, or MRA, creates detailed images of blood vessels and measures blood flow. For this test, contrast material is given through a vein to improve the visibility of the heart and its blood vessels.
Why might I need this test?
Your clinician may order this test to evaluate suspected coronary artery narrowing, reduced blood flow, or other problems affecting vessels near the heart. It may also help assess the anatomy of the heart and nearby blood vessels.
How is the test performed?
You will lie on a table inside an MRI scanner. The scanner uses magnetic fields and radio waves to take images, while an IV line may be used to administer contrast material. The test usually takes 30 to 60 minutes, although timing can vary.
How do I prepare for the test?
Follow your imaging center's instructions and tell the staff about prior contrast reactions, kidney disease, pregnancy, or implanted medical devices. You may need to avoid food or drink for a short time, depending on local instructions and whether sedation is planned.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may indicate narrowing or blockage of a coronary artery, reduced blood flow, an aneurysm, or another structural problem involving the heart's vessels. The results are interpreted together with symptoms, examination findings, and other cardiac tests, and abnormal areas may require additional imaging or evaluation.
Short name
Heart MRA with IV contrast
Frequently asked questions
Is this the same as a standard heart MRI?
Is the intravenous contrast material different from the material used for CT scans?
Will I be able to drive home after the test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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