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CT Pelvis, Low Dose, Without Contrast

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

A low-dose CT scan creates detailed images of the pelvic bones and nearby tissues using radiation without injected contrast dye.

Quick summary

["This test uses a lower radiation dose to examine the pelvis and does not require contrast dye."]

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

Key facts at a glance

LOINC
36108-9
Short code
CT Pelvis Ltd WO contr
Synonyms
CT Pelvis Ltd 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 low-dose CT pelvis is an X-ray-based imaging test that produces cross-sectional pictures of the pelvic bones, hip joints, and nearby soft tissues. It uses a reduced radiation dose and no intravenous contrast dye.

Why might I need this test?

Your clinician may order this test to evaluate pelvic injuries, hip or bone problems, or certain abnormalities involving nearby soft tissues. It may also be used to monitor conditions affecting the pelvic area.

How is the test performed?

You will lie on a padded table while a CT scanner rotates around you and takes pictures. The scan is generally painless and usually takes only a few minutes, although the total visit may take longer.

How do I prepare for the test?

Remove metal objects, such as jewelry, belt buckles, and glasses, before the scan if instructed. Tell the technologist if you are pregnant or may be pregnant, and follow any clothing or contrast-related instructions provided by your care team.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

The scan may identify fractures, degenerative or inflammatory changes, infections, masses, or other structural abnormalities in the pelvis. Results are interpreted by a radiologist and should be considered together with your symptoms, physical examination, and other tests.

Short name

Low-Dose CT Pelvis

Frequently asked questions

Does this CT scan use contrast dye?
No. “Without contrast” means no contrast dye is injected for this examination.
Is a low-dose CT scan the same as a standard CT scan?
It uses the same basic imaging technology but a lower radiation dose. The images may be less detailed than those from a standard-dose study.
Will the CT scan be painful?
The scan itself is usually painless. You may be asked to remain still briefly, and the scanner can feel somewhat confined if it passes close to your body.
  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