IschemiaRegional Blood FlowMyocardial IschemiaBlood Flow VelocityBrain IschemiaCerebrovascular CirculationReperfusion InjuryMyocardial Reperfusion InjuryAcute DiseaseDogsTime FactorsHindlimbHemodynamicsLaser-Doppler FlowmetryCoronary CirculationMyocardiumDisease Models, AnimalIschemic Attack, TransientBlood PressureHeartLegRats, Sprague-DawleyRats, WistarElectrocardiographyBrainCoronary DiseaseVentricular FibrillationEmbolectomyAneurysmMyocardial StunningArterial Occlusive DiseasesPopliteal ArteryMyocardial ReperfusionFlow CytometryHeart RateArrhythmias, CardiacCerebral InfarctionMyocardial InfarctionAmputationModels, CardiovascularVascular ResistanceSwineReperfusionPulsatile FlowMyocardial ContractionEmbolismHeart VentriclesMicrocirculationXenon RadioisotopesMicrospheresLower ExtremityOxygenSystoleWarm IschemiaKidneyOxygen ConsumptionRabbitsVascular PatencyMagnetic Resonance ImagingVentricular Function, LeftRenal CirculationLiver CirculationCoronary VesselsHeart Conduction SystemGerbillinaeIschemic PreconditioningVasodilationPerfusionSplanchnic CirculationCollateral CirculationCerebral ArteriesThrombolytic TherapyHyperemiaVasodilator AgentsCarbon DioxideCold IschemiaTomography, Emission-ComputedSpinal Cord IschemiaPulmonary CirculationDiastoleRheologyInfarction, Middle Cerebral ArteryMice, Inbred C57BLUltrasonography, DopplerNitric OxideCapillariesOxygen RadioisotopesXenonAdenosineIschemic Preconditioning, MyocardialBlood VolumeTreatment OutcomeArteriesNeuroprotective AgentsApoptosisRetinal VesselsUltrasonography, Doppler, ColorStrokeConstrictionBlood Circulation Time