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CT Spine With Contrast

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

A CT scan uses X-rays and injected contrast to produce detailed images of the spine, spinal canal, vertebrae, and nearby tissues.

Quick summary

["This scan can help identify problems affecting the vertebrae, spinal cord, discs, nerves, or surrounding tissues."]

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

Key facts at a glance

LOINC
39322-3
Short code
CT Spine W contr ID
Synonyms
CT Spine W contr ID
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ct
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?

A CT spine scan creates detailed cross-sectional images of the spine using X-rays. Intravenous contrast may be given to improve the visibility of certain tissues, blood vessels, inflammation, or masses.

Why might I need this test?

Your clinician may order this scan to evaluate back or neck pain, numbness, weakness, trauma, or suspected spinal disease. It may also be used to assess disc abnormalities, narrowing of the spinal canal, infection, tumors, or bone damage.

How is the test performed?

You will lie on a table that moves through the CT scanner while X-ray images are taken. If contrast is required, it is usually injected into a vein in your arm, and the images are reviewed by a radiologist.

How do I prepare for the test?

Follow the imaging center's instructions and tell the care team about any contrast allergy, kidney disease, pregnancy, or prior reaction to contrast. Some centers may ask you to drink water before the scan or follow special medication instructions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CT spine with IV contrast

Frequently asked questions

Does a CT spine scan use radiation?
Yes. CT imaging uses a small amount of ionizing radiation, and the scan is designed to obtain the needed images with the lowest appropriate exposure.
Why is contrast used?
Iodinated contrast can make blood vessels and certain tissues easier to see. It may help clinicians evaluate inflammation, infection, masses, or the extent of an abnormality.
Will I be able to drive after the scan?
Most people can leave normally after a CT spine scan. If you received sedation or your clinician instructed you to drive, have someone else drive you home.
  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