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CT Angiography of the Mesenteric Vessels, With or Without Intravenous Contrast

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

CT angiography evaluates the blood vessels that supply the intestines for narrowing, blockage, aneurysms, or other vascular abnormalities.

Quick summary

["This CT scan checks the blood supply to the intestines and may include intravenous contrast."]

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

Key facts at a glance

LOINC
87852-0
Short code
CTA Mesenteric ves WO+W contr IV
Synonyms
CTA Mesenteric ves WO+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?

Mesenteric vessel CT angiography is an imaging test that uses CT scans and, when indicated, contrast material injected through a vein to examine the arteries that supply the intestines.

Why might I need this test?

It may be ordered to evaluate severe abdominal pain, suspected loss of blood flow to the bowel, unexplained bleeding, or symptoms suggesting an aneurysm or another blood-vessel problem.

How is the test performed?

You lie on a CT table while the scanner takes images of the abdomen. The protocol may include images before and after intravenous contrast, and the scan typically takes only a few minutes.

How do I prepare for the test?

Follow the imaging center's instructions, which may include fasting or blood testing before contrast. Tell the care team about contrast allergies, kidney disease, pregnancy, or any prior reaction to contrast.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Mesenteric Vessel CT Angiography

Frequently asked questions

Does this test use contrast?
It may, depending on the ordered protocol. Contrast is usually injected into a vein and helps show the mesenteric blood vessels more clearly.
Is CT angiography the same as a routine abdominal CT?
No. CT angiography is specifically timed to evaluate blood vessels, often with contrast, while a routine abdominal CT may focus more broadly on the organs and other structures.
What should I do if I have a contrast allergy?
Tell the imaging center before the appointment. The care team can determine whether the test can be performed safely or whether an alternative imaging method is needed.
  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