Blood PressurePressureAortaBlood Pressure DeterminationHemodynamicsDogsArterial PressureVascular ResistanceTransducers, PressurePulseHydrostatic PressurePulsatile FlowCoronary CirculationHeart RateRadial ArteryHypertensionComplianceModels, CardiovascularCardiac OutputVentricular PressureBlood Flow VelocityDiastoleSystoleBlood CirculationHeartBrachial ArteryMetaraminolArteriesNitroglycerinAorta, ThoracicCardiac CatheterizationElasticityIntracranial PressureOphthalmodynamometryCarotid SinusIntraocular PressureCollateral CirculationBlood Pressure Monitoring, AmbulatoryVentricular Function, LeftHyperemiaAntihypertensive AgentsRegional Blood FlowVasodilator AgentsManometryAir PressureAtmospheric PressureMyocardial ContractionPressoreceptorsPerfusionVenous PressureAortic Valve StenosisVentricular FunctionHeart VentriclesCoronary VesselsAnesthesiaConstrictionHypotensionCounterpulsationMyocardiumCardiac VolumeValsalva ManeuverTime FactorsCoronary DiseaseOxygen ConsumptionVascular StiffnessBlood VolumePropranololAtenololNitroprussideCatheterizationFractional Flow Reserve, MyocardialFemoral ArteryStroke VolumeConsciousnessSympathetic Nervous SystemCarotid ArteriesElectrocardiographyCentral Venous PressureCardiomegalyVasodilationPulmonary ArteryPulmonary Wedge PressureEchocardiography, DopplerAdenosineReflexNorepinephrineSignal Processing, Computer-AssistedAdrenergic beta-AntagonistsProspective StudiesOxygenCardiac Pacing, ArtificialDose-Response Relationship, DrugIsofluraneReproducibility of ResultsEchocardiographyVasoconstrictionOsmotic PressurePhysical ExertionSwineRest