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Magnetic Resonance Angiography, Superior Mesenteric Vein and Esophagus — With or Without Intravenous Contrast

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

An MRI-based imaging test that examines blood vessels in the superior mesenteric vein and esophageal region, with or without IV contrast.

Quick summary

["This MRA evaluates the blood vessels of the superior mesenteric vein and esophageal region for narrowing, blockage, or abnormal blood flow."]

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

Key facts at a glance

LOINC
44231-9
Short code
MRA SM ves WO+W contr IV
Synonyms
MRA SM 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
mr-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?

Magnetic resonance angiography (MRA) is an imaging test that uses a strong magnetic field and radio waves to create pictures of blood vessels. This test focuses on the superior mesenteric vein and the esophageal region.

Why might I need this test?

A clinician may order this MRA to investigate symptoms such as abdominal pain, swelling, or changes in blood flow. It may be used to evaluate vein narrowing, blockage, clot-related changes, or abnormal vessels associated with conditions affecting the abdomen.

How is the test performed?

You will lie on a table inside an MRI machine while images are taken. Intravenous contrast may be given through a vein in your arm to improve the visibility of blood vessels, depending on the examination protocol. The test does not use ionizing radiation.

How do I prepare for the test?

Follow the imaging center's instructions, especially if IV contrast may be used. Tell the care team about contrast allergies, kidney disease, pregnancy, metal implants, or devices that cannot enter the MRI area; fasting may be requested in some cases.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

MRA of the Superior Mesenteric Vein and Esophagus

Frequently asked questions

Does this MRA use radiation?
No. MRI-based angiography uses magnetic fields and radio waves rather than ionizing radiation.
Why might I need intravenous contrast?
IV contrast can make blood vessels and blood flow easier to see. The ordering clinician and imaging center will determine whether contrast is appropriate for the examination.
What should I do if I am pregnant or have a metal implant?
Tell the imaging center before the appointment. These factors can affect test selection, safety, or the need for special precautions.
  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