Computed tomographic perfusion abnormalities in acute migraine with aura: Characteristics and comparison with transient ischemic attack.

Migraine with aura (MA) accounts for up to 10% of "stroke mimics" and can present cerebral perfusion abnormalities. We aimed to compare perfusion-CT (PCT) findings in acute-onset MA mimicking an ischemic stroke with those observed in transient ischemic attack (TIA).