Magnetic Resonance Angiography (MRA), Lower Extremities Bilateral, With or Without Intravenous Contrast
An imaging test that uses magnetic fields and possible IV contrast to evaluate blood vessels in both lower legs and identify narrowing, blockages, or aneurysms.
["This MRA examines the arteries that supply blood to both legs and may include an intravenous contrast injection."]
Key facts at a glance
- LOINC
- 105135-8
- Short code
- MRA LE ves-Bl WO+W contr IV
- Synonyms
- MRA LE ves-Bl WO+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 uses a strong magnetic field and radio waves to create detailed pictures of blood vessels. In this examination, the arteries supplying both lower legs are evaluated.
Why might I need this test?
The test may be ordered to evaluate symptoms such as leg pain, cramping, numbness, coldness, or slow-healing sores. It can also help assess blood flow before a procedure or treatment and may be used in the follow-up of a known vascular condition.
How is the test performed?
You will lie on a movable table while the scanner images both legs. If your order includes contrast, a gadolinium-based contrast agent may be injected through a vein to improve the visibility of blood vessels. The scan usually requires you to remain still and may take 30 to 60 minutes.
How do I prepare for the test?
Follow the imaging center's instructions, as eating or drinking restrictions may vary. Tell the care team if you have kidney disease, have previously had a reaction to MRI contrast, have implanted medical devices, or are pregnant or breastfeeding, because these factors may affect the examination.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may indicate narrowed or blocked arteries, an aneurysm, an abnormal vessel connection, or other impaired blood flow. These findings can help explain symptoms and guide further evaluation, medication, catheter-based treatment, or surgery. The radiologist interprets the images in the context of your symptoms and other tests.
Short name
Bilateral Lower-Extremity MRA
Frequently asked questions
Will I receive intravenous contrast?
Is the MRA scan painful?
Can I have this test if I am claustrophobic?
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