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Magnetic Resonance Angiography, Lumbar Spine — With or Without Intravenous Contrast

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

Imaging of the lower back using magnetic fields, with optional intravenous contrast to show spinal structures and blood vessels in greater detail.

Quick summary

["This scan can help evaluate the lumbar spine and, when angiography is included, nearby blood vessels."]

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

Key facts at a glance

LOINC
37507-1
Short code
MRA L-spine ves WO+W contr IV
Synonyms
MRA L-spine ves 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 imaging, or MRI, creates detailed pictures of the lumbar spine using magnetic fields and radio waves. An MR angiography protocol may also evaluate nearby blood vessels.

Why might I need this test?

This test may be ordered to investigate lower-back pain, numbness, weakness, injury, or suspected problems involving the vertebrae, spinal cord, discs, nerves, or nearby vessels.

How is the test performed?

You lie on a table that moves into a large MRI scanner. Images are taken in different positions; if your order includes contrast, a vein may be used to administer it during the examination.

How do I prepare for the test?

Follow the instructions provided by the imaging center, including telling the staff about implanted devices, metal objects, medication allergies, pregnancy, or kidney disease. Remove jewelry and other metal items before the scan and bring your order and identification.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Lumbar spine MRI/MRA

Frequently asked questions

Does this test use radiation?
No. MRI uses magnetic fields and radio waves rather than ionizing radiation.
Why might I receive contrast during the scan?
Intravenous contrast can make certain tissues and blood vessels easier to distinguish. The technologist will explain the procedure and monitor you for a reaction.
Will I be able to drive home afterward?
Most people can leave normally after the scan. If you received sedating medication, you may need someone else to drive you home and should follow the center's instructions.
  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