Skip to content

MRI of the A-Spine Without and With Intravenous Contrast

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

An MRI examination of the spine performed both before and after intravenous contrast is given.

Quick summary

["This test uses MRI images, with and without IV contrast, to evaluate the spine, spinal cord, and surrounding structures."]

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

Key facts at a glance

LOINC
37500-6
Short code
MRA Spine ves W contr IV
Synonyms
MRA Spine 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?

This is a magnetic resonance imaging (MRI) examination of the spine performed without contrast and again after intravenous (IV) contrast is given. The order term “A-spine” can be used for broader spine imaging, so confirm the exact areas covered with the imaging center.

Why might I need this test?

A spine MRI may be ordered to investigate back or neck pain, numbness, weakness, trauma, or a suspected problem involving the vertebrae, discs, spinal cord, or surrounding tissues. Contrast-enhanced images can help evaluate inflammation, infection, or abnormal tissue.

How is the test performed?

You will lie on a table inside the MRI scanner while images are taken. IV contrast is then injected, and additional images are obtained. The scan does not use ionizing radiation, but it can be noisy and may take 30 to 60 minutes or longer.

How do I prepare for the test?

Follow the instructions provided by the imaging center. Tell the care team if you have kidney disease, are pregnant or may be pregnant, have had a prior serious contrast reaction, or have any implanted medical devices. Fasting is usually unnecessary unless specifically requested.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

MRI spine with and without IV contrast

Frequently asked questions

Does this MRI use radiation?
No. MRI uses magnetic fields and radio waves rather than ionizing radiation.
Why are images taken both with and without contrast?
Images without contrast show the basic structure of the spine, while contrast-enhanced images can make inflammation, infection, or abnormal tissue more visible.
What should I do if I have metal implants or a previous contrast reaction?
Tell the imaging center before the appointment. Most implants can be safely scanned, but the team may need specific instructions or additional screening.
  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