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CT Angiography of the Mesenteric Vessels — With Intravenous Contrast

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

A CT scan using intravenous contrast to examine the arteries supplying the intestines, usually when mesenteric artery disease or reduced blood flow is suspected.

Quick summary

["This test can identify narrowing, blockage, or bulging in the arteries that supply the intestines."]

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

Key facts at a glance

LOINC
87851-2
Short code
CTA Mesenteric ves W contr IV
Synonyms
CTA Mesenteric ves 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-angio
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?

CT angiography of the mesenteric vessels is a specialized CT scan of the arteries that carry blood to the intestines. Intravenous contrast is used to make these blood vessels easier to see.

Why might I need this test?

This test may be ordered to evaluate severe abdominal pain, suspected reduced blood flow to the intestines, or symptoms of a mesenteric artery problem. It can also help assess conditions such as arterial narrowing, blood clots, or aneurysms.

How is the test performed?

You will lie on a CT scanner table while the scanner takes images. A clinician or technologist will usually place an IV line and inject contrast, then scan the abdomen during or shortly afterward.

How do I prepare for the test?

Follow the imaging center's instructions about eating, drinking, and medications; fasting is not required for every mesenteric CT angiogram. Tell your care team if you are pregnant, have kidney disease, or have had a serious reaction to CT contrast, because these factors may affect the plan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate narrowing or blockage of a mesenteric artery, an aneurysm, blood clot, or other impaired blood flow. These findings may help explain symptoms such as sudden severe abdominal pain, pain after eating, or weight loss. The results should be interpreted by your clinician in combination with your symptoms and other tests.

Short name

Mesenteric CT angiography

Frequently asked questions

Does this test use radiation?
Yes. CT angiography uses a small dose of ionizing radiation along with intravenous contrast to create detailed images.
Is intravenous contrast always required?
Yes, contrast is generally required for CT angiography because it improves the visibility of the mesenteric arteries.
Can I eat or drink before the test?
It depends on the imaging center's instructions and whether the test is urgent. Follow any specific fasting or hydration instructions provided by your care team.
  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