A specialized MRI ordered to evaluate arteries.
- Stenosis/occlusion related to stroke, or carotid stenosis
- Dissection (a tear in the artery wall that can cause stroke)
- AVM's (arteriovenous malformations)
- MRA - Brain is done without contrast (gadolinium).
- Because no contrast is given, it is a good alternative to CT angiography for patients that can't tolerate CT contrast (iodinated contrast.)
- MRA - Neck requires gadolinium contrast.
MRA of Neck:
MRA of Brain - Abnormal: