Middle Cerebral ArteryInfarction, Middle Cerebral ArteryCerebral ArteriesCerebrovascular CirculationBrain IschemiaCerebral InfarctionCerebral Arterial DiseasesUltrasonography, Doppler, TranscranialCerebral AngiographyIschemic Attack, TransientArterial Occlusive DiseasesAnterior Cerebral ArteryArteriesBrainBlood Flow VelocityPosterior Cerebral ArteryMortalityBrain EdemaReperfusionIntracranial Embolism and ThrombosisStrokeNeuroprotective AgentsBasilar ArteryCarotid Artery, InternalIntracranial AneurysmDisease Models, AnimalTime FactorsCerebrovascular DisordersBrain InfarctionTomography, X-Ray ComputedCarotid ArteriesRats, Sprague-DawleyCerebral RevascularizationTemporal ArteriesMagnetic Resonance AngiographyCerebral HemorrhageSubarachnoid HemorrhageMagnetic Resonance ImagingUmbilical ArteriesInfarction, Anterior Cerebral ArteryTreatment OutcomeConstrictionReperfusion InjuryRats, WistarAneurysm, RupturedIntracranial EmbolismPulmonary ArteryBlood PressureCerebral CortexCircle of WillisUltrasonography, DopplerCarotid Artery DiseasesVertebral ArteryTissue Plasminogen ActivatorCerebral VeinsRegional Blood FlowNeurologic ExaminationPia MaterVasoconstrictionLaser-Doppler FlowmetryIntracranial ThrombosisProspective StudiesCarotid Artery ThrombosisCerebral PalsyHospital MortalityAcute DiseaseVasodilationFibrinolytic AgentsCatsIntracranial ArteriosclerosisCarotid StenosisFemoral ArteryEchoencephalographyBlood-Brain BarrierRenal ArteryMesenteric ArteriesFollow-Up StudiesCarotid Artery, ExternalRetrospective StudiesCraniotomyPulsatile FlowAngiography, Digital SubtractionEar, MiddleCollateral CirculationCarbon DioxideThrombolytic TherapyUltrasonography, PrenatalRats, Inbred SHRPredictive Value of TestsVasospasm, IntracranialMoyamoya DiseaseHypocapniaIntracranial PressureRecovery of FunctionInfant MortalityInjections, Intra-ArterialMuscle, Smooth, VascularInfarction, Posterior Cerebral ArteryHemodynamicsCoronary Artery Bypass