Magnetic Resonance Angiography (MRA) with Intravenous Contrast
MRA uses magnetic resonance imaging and injected contrast to examine blood vessels and identify narrowing, blockage, or other abnormalities.
["This imaging test helps evaluate blood vessels and may be used to investigate symptoms such as pain, weakness, or reduced circulation."]
Key facts at a glance
- LOINC
- 105153-1
- Short code
- MRA UE ves-Bl W contr IV
- Synonyms
- MRA UE ves-Bl 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, is an imaging test that produces detailed pictures of blood vessels without using X-rays. In this version of the test, contrast material is given through a vein to improve the visibility of the vessels and surrounding tissues.
Why might I need this test?
MRA may be ordered to evaluate symptoms of reduced blood flow, such as numbness, weakness, coldness, swelling, or pain. It can also help assess blood vessels in the head, neck, chest, abdomen, or limbs for narrowing, blockage, aneurysms, or other abnormalities.
How is the test performed?
You will lie on a table inside an MRI scanner while images are taken. Intravenous contrast is usually given through a small IV line in your arm, and the scan may take about 30 to 60 minutes. You may be asked to remain still and may receive instructions to hold your breath during parts of the scan.
How do I prepare for the test?
Tell the imaging team about any metal implants, medication patches, pregnancy, kidney disease, or previous contrast reactions. Follow the facility's instructions about eating, drinking, and taking medicines, and arrive early to complete screening and IV placement.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An abnormal MRA may show narrowed or blocked blood vessels, an aneurysm, an abnormal connection between vessels, or other problems affecting blood flow. The findings are interpreted together with symptoms, physical examination, and other imaging or laboratory tests. The radiologist's report should explain the location and significance of any abnormality.
Short name
MRA with IV contrast
Frequently asked questions
Is MRA the same as a standard MRI?
Does MRA use radiation?
What should I do if I am allergic to contrast or have kidney disease?
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