Cerebral ArteriesMiddle Cerebral ArteryInfarction, Middle Cerebral ArteryArteriesCerebral InfarctionCerebrovascular CirculationPosterior Cerebral ArteryAnterior Cerebral ArteryBrain IschemiaCerebral AngiographyBasilar ArteryCerebral Arterial DiseasesCarotid ArteriesPulmonary ArteryBrainIschemic Attack, TransientArterial Occlusive DiseasesCerebral PalsyMesenteric ArteriesCarotid Artery, InternalRenal ArteryFemoral ArteryUltrasonography, Doppler, TranscranialVertebral ArteryInfarction, Anterior Cerebral ArteryIntracranial AneurysmBlood Flow VelocityIntracranial Embolism and ThrombosisTemporal ArteriesSubarachnoid HemorrhageBrain EdemaCerebral HemorrhageCircle of WillisCerebral VeinsTomography, X-Ray ComputedCarotid Artery DiseasesInfarction, Posterior Cerebral ArteryVasoconstrictionStrokeMagnetic Resonance AngiographyCoronary Artery BypassCerebrovascular DisordersIliac ArteryCerebral RevascularizationRadial ArteryReperfusionMalaria, CerebralDisease Models, AnimalTime FactorsRats, Sprague-DawleyMagnetic Resonance ImagingUmbilical ArteriesNeuroprotective AgentsMammary ArteriesCarotid Artery, CommonMuscle, Smooth, VascularSubclavian ArteryVasodilationBlood PressureAneurysm, RupturedRegional Blood FlowBrain InfarctionCarotid Artery, ExternalOphthalmic ArteryBrachial ArterySplenic ArteryTreatment OutcomeVasospasm, IntracranialCarotid StenosisRats, WistarPia MaterCoronary VesselsHepatic ArteryCarotid Artery ThrombosisMesenteric Artery, SuperiorVasodilator AgentsUltrasonography, DopplerConstrictionAngiography, Digital SubtractionEndothelium, VascularCeliac ArteryReperfusion InjuryMoyamoya DiseaseHemodynamicsIntracranial ThrombosisDogsEmbolization, TherapeuticDominance, CerebralCatsRenal Artery ObstructionVasomotor SystemIntracranial PressureLaser-Doppler FlowmetryAngiographyVasoconstrictor AgentsCarbon DioxideIntracranial ArteriosclerosisNeurologic ExaminationThoracic ArteriesBlood-Brain Barrier