Intracranial arterial stenosis due to: arterial dissection; MoyaMoya disease; any known vasculitic disease; herpes zoster, ... Uncontrolled severe hypertension (systolic pressure , 180 mm Hg or diastolic pressure , 115 mm Hg), active peptic ulcer disease ... Arterial Occlusive Diseases. Vascular Diseases. Cardiovascular Diseases. Intracranial Arterial Diseases. Cerebrovascular ... or other objective evidence of arterial infarction OR clinical evidence of cerebral, spinal cord, or retinal focal arterial ...