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CT Pelvis with Reduced IV Contrast Volume

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

A pelvic CT scan that uses X-rays and a reduced volume of IV iodinated contrast to create detailed images of pelvic organs and nearby structures.

Quick summary

["This scan evaluates pelvic structures using X-rays and a reduced amount of intravenous contrast."]

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

Key facts at a glance

LOINC
46329-9
Short code
CT Pelvis W red contr vol IV
Synonyms
CT Pelvis W red contr vol 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?

This is a CT scan of the pelvis, an imaging test that uses X-rays and computer processing to create detailed pictures. A reduced volume of iodinated contrast may be given through a vein in your arm to improve the visibility of blood vessels and certain tissues.

Why might I need this test?

A pelvic CT may be used to evaluate unexplained pelvic pain, injury, infection, inflammation, kidney or bladder stones, abnormal growths, or the extent of a known condition. Your clinician will select this test based on your symptoms and medical history.

How is the test performed?

You will lie on a table as the CT scanner moves around you and takes pictures. IV contrast is usually injected through a small needle placed in a vein, and the exact protocol determines whether images are taken before or after the injection. The scan generally takes a relatively short time.

How do I prepare for the test?

Follow the imaging center's instructions, especially if you have a prior contrast reaction, kidney disease, or are pregnant or may be pregnant. Tell the care team about allergies, current medications, and any recent imaging tests involving contrast, as additional instructions may be needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

The scan may identify fractures, bleeding, infection or inflammation, stones, obstructions, or abnormal tissue in the pelvis. A radiologist interprets the images and sends the findings to your ordering clinician, who considers them together with your symptoms and other test results. The reduced contrast volume is a protocol choice and does not by itself indicate an abnormal result.

Short name

Pelvis CT with reduced IV contrast

Frequently asked questions

Does reduced contrast mean that no contrast is used?
Usually, no. It generally means that a smaller amount of IV iodinated contrast is used to provide the images while limiting contrast exposure.
Is this test the same as a standard pelvic X-ray?
No. CT uses multiple X-ray images and computer processing to show cross-sectional detail, whereas a standard X-ray produces a flatter, two-dimensional image.
What should I do if I have previously reacted to contrast?
Tell the imaging center before the appointment. The team may use a different protocol, additional precautions, or another type of imaging depending on the severity and timing of the prior reaction.
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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