MRI Vascular (MRA) Scans Sydney
MRI Vascular, also known as MRA (Magnetic Resonance Angiography), is a radiation-free imaging test that provides detailed views of blood vessels throughout the body. It is commonly used to assess arterial narrowing, aneurysms, vascular malformations, and blood flow abnormalities. All Medicare-eligible MRA studies are fully bulk-billed at Advicon Imaging.
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Description of MRI Vascular (MRA)
MRA uses advanced magnetic resonance techniques to visualise arteries and veins without ionising radiation. It can be performed with or without contrast depending on the clinical question.
MRA is commonly used to evaluate:
- Carotid and vertebral arteries (stroke risk assessment)
- Intracranial vessels (brain aneurysms, stenosis)
- Aorta and major abdominal vessels
- Renal arteries (renal artery stenosis)
- Peripheral arteries (leg circulation and claudication)
- Thoracic outlet syndrome
- Vascular malformations
- Suspected dissections
- Venous abnormalities (MRV)
Contrast-enhanced MRA provides superior detail for assessing vessel patency, flow patterns, and subtle stenoses. Non-contrast MRA is used when contrast is unsuitable.
Advantages of MRA:
- No radiation exposure
- Excellent soft-tissue and vascular contrast
- Ability to evaluate vessels and surrounding structures simultaneously
- Safe for repeated follow-up imaging
At Advicon Imaging, MRA is performed with optimised protocols for each vascular region, producing high-resolution images that assist clinicians in treatment planning.
Additional Notes
- MRA is often used in place of CT angiography for patients who need a radiation-free option.
- Please bring prior vascular studies for comparison.
Advicon Imaging – Advanced vascular MRI with full Medicare bulk-billing for eligible studies.
Frequently Asked Questions
Why do I need an MRA?
Your doctor may be assessing blood flow, narrowing, aneurysms, or circulation problems affecting the brain, neck, kidneys, abdomen, or limbs.
Is MRA safe?
Yes. MRA uses magnetic fields rather than radiation.
Inform us if you have:
- Pacemakers or implants
- Metal fragments
- Kidney problems (important if contrast is used)
Do I need preparation?
Usually no preparation.
- Fast for 4 hours if contrast is planned
- Remove all metal items
- Bring previous CT, ultrasound, or angiogram results
Will I need contrast?
Many MRA scans use gadolinium contrast for optimal vascular detail.
Non-contrast options exist when contrast is unsuitable.
How long does the scan take?
Typically 20–40 minutes, depending on the region scanned.
Is the scan painful?
No. You will lie still while the scanner takes images.
What symptoms or conditions does MRA help diagnose?
- Stroke risk
- Aneurysms
- Poor circulation
- Kidney artery narrowing
- Vascular malformations
- Chest, neck, or leg pain with suspected vascular cause
Can I drive after?
Yes, unless contrast was used and you feel unwell.
When will results be ready?
Reports are usually sent to your doctor within 24–48 hours.
Is MRA bulk-billed?
Yes. All Medicare-eligible MRA studies are fully bulk-billed at Advicon Imaging.