Coronary AngiographyRadial ArteryCoronary VesselsFemoral ArteryHospitals, Low-VolumeCoronary Artery DiseaseHemostatic TechniquesHospitals, High-VolumeRadiation MonitoringAngiographyCoronary StenosisCatheterization, PeripheralLearning CurveCoronary CirculationMagnetic Resonance AngiographyAngioplasty, Balloon, CoronaryPercutaneous Coronary InterventionCoronary DiseaseCardiac CatheterizationRadiography, InterventionalCerebral AngiographyCoronary Artery BypassTreatment OutcomeAngiography, Digital SubtractionTomography, X-Ray ComputedMyocardial InfarctionCoronary VasospasmRadiation DosageCoronary AneurysmSensitivity and SpecificityPredictive Value of TestsHemorrhageProspective StudiesTomography, Spiral ComputedElectrocardiographyContrast MediaUltrasonography, InterventionalCoronary RestenosisStentsCoronary OcclusionRisk FactorsCoronary ThrombosisIopamidolMultidetector Computed TomographyFollow-Up StudiesChest PainFluorescein AngiographyMyocardial RevascularizationRadial NerveMyocardial IschemiaTime FactorsMyocardial Perfusion ImagingAngina PectorisSeverity of Illness IndexRetrospective StudiesExercise TestTomography, Emission-Computed, Single-PhotonFractional Flow Reserve, MyocardialCalcinosisRadiographic Image Interpretation, Computer-AssistedAngina, UnstableCoronary Vessel AnomaliesFeasibility StudiesEchocardiographyReproducibility of ResultsIohexolCineangiographyImaging, Three-DimensionalCollateral CirculationVasodilator AgentsObserver VariationRisk AssessmentDipyridamoleBlood Flow VelocityTriiodobenzoic AcidsImage Processing, Computer-AssistedThallium RadioisotopesRadionuclide AngiographyMyocardial BridgingConstriction, PathologicCoronary Care UnitsAngiocardiographyPrognosisEchocardiography, StressDobutamineAngina, StableVascular PatencyTechnetium Tc 99m SestamibiGraft Occlusion, VascularHemodynamicsAccess to InformationBiological MarkersHeartPlatelet Aggregation InhibitorsCardiac-Gated Imaging TechniquesRecurrenceErgonovineRadial NeuropathyIntracranial AneurysmROC Curve