HemodynamicsCerebrovascular CirculationCerebral ArteriesUltrasonography, Doppler, TranscranialMiddle Cerebral ArteryBlood Flow VelocityAcetazolamideBlood VolumeCerebral InfarctionSpectroscopy, Near-InfraredBrainCarotid Artery, InternalCerebral VeinsMoyamoya DiseaseCarpal Tunnel SyndromeIntracranial PressureCircle of WillisBlood PressureSuperior Sagittal SinusCerebrumCarbon DisulfideRegional Blood FlowBrain IschemiaOxygen RadioisotopesCerebral RevascularizationMagnetic Resonance AngiographyXenon RadioisotopesCerebral PalsyVascular ResistanceCerebrovascular DisordersMagnetic Resonance ImagingPia MaterCerebral DecorticationCollateral CirculationModels, CardiovascularBrain InjuriesValsalva ManeuverVasomotor SystemOxygenHypotension, OrthostaticArterial Occlusive DiseasesPulsatile FlowTomography, Emission-ComputedHomeostasisCerebral AngiographyEndarterectomy, CarotidOxygen ConsumptionInfarction, Middle Cerebral ArteryMalaria, CerebralTomography, Emission-Computed, Single-PhotonTime FactorsCarotid Artery DiseasesTomography, X-Ray ComputedCerebral HemorrhageProspective StudiesStrokeAnimals, NewbornSwineRenal CirculationCardiac OutputCerebral PalsyIschemic Attack, TransientIntracranial AneurysmSensitivity and SpecificityDogsAnterior Cerebral ArteryCerebral Amyloid AngiopathyPosterior Cerebral ArteryDisease Models, AnimalRats, Sprague-DawleyCerebral VentriclesBrain EdemaHeart RateSubarachnoid HemorrhageMicrocirculationPulmonary CirculationDominance, CerebralIntracranial Embolism and ThrombosisBlood Gas AnalysisBrain DiseasesKidneyHypertension, PulmonaryLaser-Doppler FlowmetryBasilar ArteryVasospasm, IntracranialRats, WistarArteriolesVasodilator AgentsTreatment OutcomeIntracranial Arteriovenous MalformationsHypoxia, BrainHypertensionArteriesNeuroprotective AgentsReperfusionArterial PressureVasoconstrictionGlomerular Filtration RateCoronary CirculationXenon