Magnetic Resonance Angiography, Abdominal, Visceral, and Pelvic Vessels — Without Contrast
An MRI-based examination of blood vessels in the abdomen and pelvis, performed without injected contrast material.
["This test uses MRI to show abdominal and pelvic blood vessels and may help identify narrowing, blockage, or other vascular abnormalities."]
Key facts at a glance
- LOINC
- 99611-6
- Short code
- MRA Abd ves+Pelvis ves WO contr
- Synonyms
- MRA Abd ves+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, is an MRI technique that produces images of blood vessels. This examination evaluates vessels supplying the abdominal organs and pelvis and is performed without injected contrast material.
Why might I need this test?
Your clinician may order this test to investigate suspected narrowing or blockage of abdominal or pelvic arteries, an aneurysm, or symptoms that could be related to reduced blood flow. It may also be used to plan treatment or monitor a known vascular condition.
How is the test performed?
You will lie on a table inside an MRI scanner while images are acquired. The machine uses magnetic fields and radio waves; no injected contrast is used for this examination, although a sedative may occasionally be provided if needed.
How do I prepare for the test?
Follow the instructions provided by the imaging facility. Remove jewelry, watches, cards, and other items that may contain metal, and tell the technologist about any implants, medication patches, pregnancy possibility, or claustrophobia.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may include narrowing, obstruction, aneurysmal enlargement, or other changes in the abdominal or pelvic vessels. The results should be interpreted by your clinician in the context of your symptoms, examination, and other imaging or laboratory tests. Sudden severe abdominal or back pain, fainting, or symptoms of a blood-vessel emergency require immediate medical attention rather than waiting for routine test review.
Short name
Abdominal and pelvic MRA without contrast
Frequently asked questions
Does this MRA use contrast material?
Is magnetic resonance angiography the same as a routine MRI?
What if I have a metal implant or feel anxious in the MRI room?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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