middle cerebral artery ischemic strokemiddle cerebral artery infarctmiddle cerebral artery thrombosisbrachiocephalic arterymedial cerebral artery strokearterial hypertensionmiddle cerebral artery occlusionperipheral artery disease treatmentmiddle cerebral artery syndromeartery of adamkiewiczcoronary artery disease treatmentpulmonary artery