MRA (magnetic resonance angiogram) head radiology search pattern
As a neuroradiologist, one of the most frequently ordered tests you will encounter is an MRA (magnetic resonance angiogram) of the brain. This test is frequently used to evaluate the vessels of the brain, including the carotid and vertebral arteries and their intracranial branches of the circle of Willis.
MRA of the brain can evaluate for vessel occlusion, dissection, aneurysm, and vascular malformations. It can also be used to follow up on vascular findings seen on other studies. The most common indication, however, is to evaluate for stroke, when it is combined with MRA of the neck and an MRI of the brain.
This video will walk you through a step-by-step approach to evaluating an MRA of the brain, including how to approach each vessel. I use an approach that moves from anterior to posterior and then right to left. While others may have a different strategy, the most important part is to have a strategy and stick to it.
The level of this lecture is appropriate for medical students, junior residents, and trainees in other specialties who have an interest in neuroradiology or may see patients with stroke or other vascular malformations of the brain.
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