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Magnetic Resonance Angiography of the Pelvic Vessels Without Contrast

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

An MRI-based imaging test that shows blood vessels in the pelvis and evaluates their placement and blood flow without using contrast dye.

Quick summary

["This imaging test evaluates pelvic blood vessels and blood flow without intravenous contrast."]

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

Key facts at a glance

LOINC
36883-7
Short code
MRA Pelvis ves WO contr
Synonyms
MRA Pelvis 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, creates detailed images of blood vessels using magnetic fields and radio waves. This version examines the vessels in the pelvis without injecting contrast dye.

Why might I need this test?

A pelvic MRA may be used to investigate narrowed or blocked blood vessels, aneurysms, blood clots, or problems caused by nearby structures. It may also help plan treatment or monitor known vascular conditions.

How is the test performed?

You will lie on a table inside an MRI scanner. The scanner takes many images while a technologist guides you through the examination, which may take 30 to 60 minutes. The images are then reviewed by a radiologist.

How do I prepare for the test?

Tell the care team if you have a pacemaker, implanted medical device, metal fragments in your body, or a history of claustrophobia. Follow the facility's instructions about eating, drinking, and taking medicines, and bring your identification and insurance information.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Pelvic MRA without contrast

Frequently asked questions

Does this test use contrast dye?
No. The test is specified as being performed without contrast, so you generally will not receive an intravenous injection of contrast material.
Is a pelvic MRA the same as a pelvic MRI?
A pelvic MRA is a focused form of MRI that specifically evaluates blood vessels and blood flow. A standard pelvic MRI may examine other pelvic organs and tissues as well.
What if I cannot tolerate lying inside the MRI scanner?
Tell the care team before the appointment. Options such as relaxation techniques, medication, or sedation may be available depending on your situation and the facility's policies.
  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