Middle Cerebral ArteryInfarction, Middle Cerebral ArteryCerebral ArteriesCerebrovascular CirculationBrain IschemiaCerebral InfarctionCerebral Arterial DiseasesUltrasonography, Doppler, TranscranialCerebral AngiographyIschemic Attack, TransientArterial Occlusive DiseasesAnterior Cerebral ArteryArteriesBrainBlood Flow VelocityPosterior Cerebral ArteryBrain EdemaReperfusionIntracranial Embolism and ThrombosisStrokeNeuroprotective AgentsBasilar ArteryCarotid Artery, InternalIntracranial AneurysmDisease Models, AnimalBrain InfarctionCerebrovascular DisordersTomography, X-Ray ComputedRats, Sprague-DawleyCarotid ArteriesTime FactorsCerebral RevascularizationTemporal ArteriesMagnetic Resonance AngiographyCerebral HemorrhageSubarachnoid HemorrhageMagnetic Resonance ImagingInfarction, Anterior Cerebral ArteryUmbilical ArteriesConstrictionReperfusion InjuryRats, WistarIntracranial EmbolismAneurysm, RupturedPulmonary ArteryCerebral CortexCircle of WillisBlood PressureUltrasonography, DopplerVertebral ArteryCerebral VeinsCarotid Artery DiseasesRegional Blood FlowNeurologic ExaminationTissue Plasminogen ActivatorPia MaterVasoconstrictionLaser-Doppler FlowmetryIntracranial ThrombosisTreatment OutcomeCarotid Artery ThrombosisCerebral PalsyCatsVasodilationEchoencephalographyIntracranial ArteriosclerosisBlood-Brain BarrierFibrinolytic AgentsCarotid StenosisMesenteric ArteriesRenal ArteryCarotid Artery, ExternalFemoral ArteryPulsatile FlowAngiography, Digital SubtractionAcute DiseaseCraniotomyEar, MiddleCollateral CirculationCarbon DioxideRats, Inbred SHRMoyamoya DiseaseUltrasonography, PrenatalHypocapniaVasospasm, IntracranialThrombolytic TherapyIntracranial PressureRecovery of FunctionInjections, Intra-ArterialMuscle, Smooth, VascularInfarction, Posterior Cerebral ArteryNeuronsPapioHemodynamicsAcetazolamideSurgical InstrumentsRadial ArteryConstriction, PathologicProspective StudiesHemiplegia