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CT Scan of the Spine with Intravenous Contrast

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

A CT scan of the spine performed with intravenous contrast to help evaluate the vertebrae, spinal canal, discs, and surrounding tissues.

Quick summary

["This imaging test uses X-rays and IV contrast to help identify spinal abnormalities that may not be clear on a standard X-ray."]

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

Key facts at a glance

LOINC
24987-0
Short code
CT Spine W contr IV
Synonyms
CT Spine 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
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 is an X-ray-based imaging test that creates detailed pictures of the spine. Intravenous contrast is injected into a vein to improve the visibility of certain tissues and blood vessels.

Why might I need this test?

Your clinician may order this test to investigate back or neck pain, weakness, numbness, or symptoms suggesting nerve or spinal cord compression. It may also be used to assess injuries, infections, tumors, or other structural changes in the spine.

How is the test performed?

You usually lie on a table while a CT scanner rotates around the body and takes multiple X-ray images. IV contrast is given through a vein, and the images are reviewed by a radiologist and sent to your ordering clinician.

How do I prepare for the test?

Follow the instructions provided by your imaging center. You may be asked about contrast allergies, kidney problems, pregnancy, and medications; contrast may need to be avoided or modified in some circumstances.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CT Spine with IV Contrast

Frequently asked questions

Is a CT spine scan the same as an MRI?
No. CT uses X-rays and is often useful for viewing bone and acute injuries, while MRI uses magnetic fields and provides greater detail for discs, nerves, and soft tissues.
Why is IV contrast used?
IV contrast can make blood vessels and certain tissues easier to see, which may help evaluate inflammation, infection, bleeding, or a mass.
Will I need to stay at the imaging center afterward?
Most CT scans do not require an overnight stay. You may be monitored briefly afterward, especially if you received contrast, and should follow the discharge instructions from the imaging center.
  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