Patients suffering from intracranial athero-
In subjects with
sclerosis have a high subsequent stroke risk.
symptomatic middle cerebral artery (MCA) stenosis, the
overall annual stroke risk is 2.8%, whereas in patients with
symptomatic middle artery stenosis the risk is even 4 times
high.For many years, lumenography-based methods were
used to assess intracranial atherosclerotic disease by means
of luminal narrowing, and it was thought that stenosis grade
was an accurate reflection of disease burden.