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CT Scan of the Spine Without Contrast

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

A CT scan uses X-rays to create detailed images of the spine. This version is performed without injected contrast.

Quick summary

["A spine CT without contrast provides detailed images of the spinal bones and surrounding structures without the use of injected contrast."]

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

Key facts at a glance

LOINC
30597-9
Short code
CT T-spine WO contr
Synonyms
CT T-spine WO contr
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 scan of the spine is an imaging test that uses X-rays and a computer to create cross-sectional images of the vertebrae, spinal canal, discs, and nearby tissues. In this study, no contrast dye is injected.

Why might I need this test?

Your clinician may order this test to evaluate back or neck pain, an injury, weakness, numbness, or difficulty walking. It can help identify conditions affecting the bones, discs, spinal canal, or surrounding soft tissues.

How is the test performed?

You will lie on a table as an X-ray device moves around the area being examined. The scan is usually brief, and the images are reviewed by a radiologist and reported to your clinician.

How do I prepare for the test?

No special preparation is usually required for a CT scan without contrast. Remove metal objects and tell the imaging staff if you are pregnant or may be pregnant, because radiation exposure requires careful review.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Spine CT Without Contrast

Frequently asked questions

Is this the same as an MRI?
No. A CT scan uses X-rays and is often useful for viewing bones in detail, while an MRI uses magnetic fields and provides different views of discs, nerves, and other soft tissues.
Will I receive contrast dye?
No. This test is performed without injected contrast. If contrast is needed for additional imaging, your clinician will explain why and how it will be administered.
Does a spine CT without contrast require hospitalization?
Usually not. The test is generally performed on an outpatient basis and does not require an overnight stay.
  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