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CT Scan of the Thigh Without Contrast

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

A CT scan uses X-rays to create detailed images of the thigh, including the bones and surrounding soft tissues, without injected contrast.

Quick summary

["This scan provides detailed pictures of the thigh to help evaluate injuries and other structural problems."]

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

Key facts at a glance

LOINC
36460-4
Short code
CT Thigh WO contr
Synonyms
CT Thigh 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 thigh CT scan is an imaging test that uses X-rays and a computer to create cross-sectional pictures of the thigh. It shows the femur, nearby joints, muscles, fat, blood vessels, and other soft tissues.

Why might I need this test?

Your clinician may order this scan to evaluate a suspected fracture, infection, tumor, or another problem involving the thigh bone or surrounding tissues. It may also be used to plan treatment or monitor healing.

How is the test performed?

You will lie on the CT table while an X-ray device moves around the thigh and captures multiple images. The procedure is generally painless and usually takes only a few minutes, although the total visit may take longer.

How do I prepare for the test?

Because this is a scan without injected contrast, fasting is usually not required. Tell the imaging staff about any imaging contrast you have previously received, and follow the facility's instructions about medications, metal implants, pregnancy, and jewelry or other objects in the scanning area.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CT thigh without contrast

Frequently asked questions

Does this CT scan use contrast dye?
No. This is a non-contrast CT scan, so no contrast is injected through your vein. If your clinician also orders a contrast-enhanced scan, separate preparation may be required.
Is a CT scan of the thigh painful?
The scan itself is usually painless. You may feel brief pressure from the scanning device, and you will need to remain still so the images are clear.
How much radiation will I receive?
CT scans use ionizing radiation, and the amount depends on the body area being scanned and the imaging protocol. The imaging center can explain the expected exposure and the steps used to keep it as low as reasonably possible.
  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