MR Angiography

A specialized MRI ordered to evaluate arteries.


  • Aneurysm
  • 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: