Coronary-Subclavian Steal SyndromeCoronary StenosisCoronary VesselsCoronary AngiographyCoronary CirculationCoronary Artery DiseaseCoronary DiseaseArteriesAngioplasty, Balloon, CoronaryCarotid StenosisCoronary Artery BypassFractional Flow Reserve, MyocardialAortic Valve StenosisConstriction, PathologicCoronary VasospasmCzechoslovakiaSpinal StenosisMyocardial InfarctionDogsTracheal StenosisStentsHemodynamicsMyocardial IschemiaPulmonary ArteryTomography, X-Ray ComputedUltrasonography, InterventionalCarotid ArteriesPredictive Value of TestsSeverity of Illness IndexTreatment OutcomeFollow-Up StudiesHyperemiaBlood Flow VelocityCoronary RestenosisSensitivity and SpecificityCardiac CatheterizationProspective StudiesRisk FactorsCoronary AneurysmRenal ArteryCoronary ThrombosisFemoral ArteryUSSRPyloric StenosisMitral Valve StenosisPulmonary Valve StenosisEchocardiographyCalcinosisElectrocardiographyDobutamineCarotid Artery, InternalCerebral ArteriesDipyridamoleVasodilator AgentsAdenosineAngina Pectoris, VariantTime FactorsTomography, Spiral ComputedThallium RadioisotopesRenal Artery ObstructionExercise TestAngina PectorisMagnetic Resonance AngiographyMesenteric ArteriesAngiographyTomography, Emission-Computed, Single-PhotonBlood PressureBasilar ArteryIliac ArteryChest PainMyocardial RevascularizationRadial ArteryMammary ArteriesCarotid Artery DiseasesRetrospective StudiesPercutaneous Coronary InterventionMyocardial Perfusion ImagingVasodilationCollateral CirculationMyocardial StunningAngina, UnstableVertebral ArteryMyocardial ContractionHeartCoronary OcclusionSwineContrast MediaNitroglycerinMucocutaneous Lymph Node SyndromeEchocardiography, StressRegional Blood FlowAngioplasty, BalloonReproducibility of ResultsArterial Occlusive DiseasesRisk AssessmentMyocardiumSubclavian ArteryObserver VariationModels, CardiovascularMultidetector Computed Tomography