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CT Scan of the Liver with Intravenous Contrast

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

A CT scan creates detailed liver images using intravenous contrast to help evaluate masses, injury, infection, and other liver problems.

Quick summary

["This imaging test helps doctors evaluate the structure and condition of your liver."]

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

Key facts at a glance

LOINC
24815-3
Short code
CT Liver W contr IV
Synonyms
CT Liver W contr 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?

A liver CT scan is an imaging test that uses X-rays and a computer to create detailed pictures of the liver. Intravenous contrast is given through a vein to improve the visibility of blood vessels and tissues.

Why might I need this test?

Your clinician may order this test to investigate unexplained abdominal symptoms, evaluate a liver mass or injury, look for infection or inflammation, or assess the liver and nearby blood vessels.

How is the test performed?

You will lie on a table while a CT scanner takes X-ray images from different angles. IV contrast is usually injected into a vein in your arm, and the images are reviewed by a radiologist.

How do I prepare for the test?

Follow your clinician's instructions, which may include avoiding food and drinks for several hours. Tell the imaging staff about kidney disease, previous contrast reactions, iodine or shellfish allergies, and any possibility of pregnancy.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

The scan may reveal liver masses, fluid collections, injury, inflammation, infection, or changes in the liver's blood supply. Results are interpreted together with your symptoms, medical history, laboratory tests, and other imaging. The radiologist's report explains the findings, and your ordering clinician will discuss what they mean for your care.

Short name

Liver CT with IV contrast

Frequently asked questions

Is a liver CT scan the same as an ultrasound?
No. CT uses X-rays to create cross-sectional images, while ultrasound uses sound waves. Your clinician may recommend one or both depending on the situation.
Why is contrast used during the scan?
Intravenous contrast can highlight blood vessels and improve the visibility of certain tissues and abnormalities. It may cause a warm flushing sensation, but serious reactions are uncommon.
Will I be able to drive home after the test?
Most people can leave normally after the scan, especially if no sedating medication was given. If you received sedatives or your clinician advised otherwise, arrange for a ride and follow the provided instructions.
  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