Skip to content

Magnetic Resonance Angiography, Abdominal Vessels, Without Contrast

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

An MRI-based scan of abdominal blood vessels performed without contrast to evaluate their anatomy and blood flow.

Quick summary

["This scan images abdominal blood vessels to help detect narrowing, blockage, aneurysms, or other vascular abnormalities."]

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

Key facts at a glance

LOINC
36878-7
Short code
MRA Abd ves WO contr
Synonyms
MRA Abd ves WO contr
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, or MRA, uses specialized MRI techniques to create detailed images of blood vessels. This version evaluates the vessels in the abdomen without injecting contrast material.

Why might I need this test?

An abdominal MRA may be ordered to investigate symptoms such as abdominal or flank pain, unexplained weight loss, or reduced pulses. It can also be used to evaluate vessels before a procedure or monitor a known vascular condition.

How is the test performed?

You lie on a table inside an MRI scanner while a technologist takes several sets of images. You may be asked to remain still and briefly hold your breath. No contrast material is injected for this examination.

How do I prepare for the test?

Follow the facility's instructions about eating, medications, and arrival time. Tell the care team about metal implants, pregnancy, claustrophobia, or any other MRI safety concerns, and remove personal items containing metal before entering the scanner room.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

An abnormal report may show narrowing, blockage, an aneurysm, dissection, or an abnormal vessel pattern. Depending on the location and appearance, these findings may be associated with atherosclerosis, blood clots, or inflammatory vessel disease. A radiologist will interpret the images in the context of your symptoms and other examinations.

Short name

Abdominal MRA without contrast

Frequently asked questions

Does this abdominal MRA use contrast?
No. The term “without contrast” means that contrast material is not injected during this examination. Any additional imaging ordered at the same visit may have different preparation requirements.
Is this the same as a routine abdominal MRI?
It uses MRI technology, but specialized imaging sequences focus on blood vessels rather than primarily on organs and tissues.
Does abdominal MRA involve radiation?
No. MRI uses magnetic fields and radiofrequency signals, so it does not use ionizing radiation like X-ray or CT imaging.
  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