REstoring Flow by REvascularization With Submaximal Angioplasty in Hemodynamic IntraCranial Atherosclerotic Stenosis

Inclusion: * Non-severe recent stroke (within 30 days) attributed to 70-99% stenosis of intracranial artery (internal carotid, middle cerebral, vertebral, basilar); must be confirmed by CTA (or DSA if already available) for enrollment into the trial. * Hemodynamic compromise based on borderzone infarct pattern\* for the anterior circulation (internal carotid and middle cerebral artery stenosis) and by low flow state on QMRA\*\* for the posterior circulation (vertebral and basilar artery stenosis). * Target vessel with minimal nominal diameter of 2mm * Target length of stenosis \<18mm * Symptoms within 30 days of enrollment * Age ≥30 and ≤90 years old# * Able to provide informed consent * \*Sole or predominant borderzone infarct pattern of qualifying event, as defined by SAMMPRIS cohort analysis \*\*Low flow state as determined by optimized flow algorithm as defined by the VERiTAS Study * #Those 30-49 years of age must also have the presence of established atherosclerotic disease in another vascular bed (coronary, extracranial carotid, peripheral) or the presence of 2 or more risk factors (hypertension, diabetes mellitus, hyperlipidemia, tobacco abuse within the last 2 years). Exclusion: * Major disabling stroke mRS \>3; progressive or fluctuating deficit within 24 hours * Hemorrhagic infarction (based on CT) within 14 days of enrollment * Any large stroke (\>5cm) to be at risk for hemorrhagic conversion * Any neurological disease which would confound follow-up assessm…