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Computed Tomography (CT) Scan of the Sternum Without Contrast

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

A CT scan uses X-rays to create detailed images of the breastbone (sternum), helping evaluate fractures, bone abnormalities, and nearby soft tissues.

Quick summary

["This CT scan examines the structure of the breastbone and surrounding tissues without using injected contrast dye."]

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

Key facts at a glance

LOINC
36534-6
Short code
CT Sternum WO contr
Synonyms
CT Sternum 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 sternum CT is an X-ray-based imaging test that creates detailed cross-sectional pictures of the breastbone, or sternum. It can show the bone, cartilage, nearby soft tissues, and structures surrounding the chest.

Why might I need this test?

This test may be ordered to evaluate a suspected sternum fracture, pain after an injury, or an abnormality seen on another X-ray. It may also be used to assess bone changes caused by infection, a tumor, or other conditions.

How is the test performed?

You will lie on a CT table while the scanner rotates around you and takes X-ray images. The examination is usually brief and does not require injected contrast dye for this test.

How do I prepare for the test?

Fasting is generally not required. Wear comfortable clothing without metal fasteners and remove jewelry, hair accessories, and other metal objects near the scanned area. Tell the imaging team if you are pregnant or may be pregnant.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CT Scan of the Sternum Without Contrast

Frequently asked questions

Does this CT scan use contrast dye?
No. The test name indicates that it is performed without injected contrast material.
Is a sternum CT the same as a chest CT?
Not necessarily. A sternum CT focuses on detailed images of the breastbone, while a chest CT may cover the lungs and other chest structures more broadly.
Will the test expose me to radiation?
Yes. CT scans use ionizing radiation, but the exposure is generally brief and is balanced against the clinical need for detailed images.
  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