The diagnosis of migraine aura is now based solely on clinical criteria and the assertion of the diagnosis on these clinical criteria alone proves difficult in the acute phase. Added to this difficulty, the symptomatology of a migraine aura can sometimes be similar to that of a stroke, so a diagnosis can be poorly established, resulting in poor patient care. The possibility of making the positive diagnosis of migraine aura on a routine MRI sequence, T2 \*, would be an important advance for the management of these patients
