Myocardial Perfusion ImagingTomography, Emission-Computed, Single-PhotonCardiac-Gated Single-Photon Emission Computer-Assisted TomographyTechnetium Tc 99m SestamibiRadiopharmaceuticalsThallium RadioisotopesGated Blood-Pool ImagingDipyridamoleCoronary CirculationPerfusionOrganotechnetium CompoundsHeartImage Interpretation, Computer-AssistedCoronary Artery DiseaseSensitivity and SpecificityVentricular Dysfunction, LeftReproducibility of ResultsPerfusion ImagingExercise TestThalliumMyocardial IschemiaOrganophosphorus CompoundsRubidium RadioisotopesCoronary AngiographyCoronary DiseaseNitrogen RadioisotopesTomography, Emission-ComputedOximesAdenosineContrast MediaArtifactsMyocardial ReperfusionImage Processing, Computer-AssistedImage EnhancementVasodilator AgentsTechnetium Tc 99m ExametazimeMyocardial InfarctionCoronary VesselsPredictive Value of TestsFractional Flow Reserve, MyocardialPositron-Emission TomographyVentricular Function, LeftVentriculography, First-PassGamma CamerasElectrocardiographyEchocardiographyTechnetiumCoronary StenosisMyocardiumTomography, X-Ray ComputedPhantoms, ImagingDobutamineFeasibility StudiesRadioisotopesSubtraction TechniqueAngina PectorisIodobenzenesMicrocirculationDiatrizoate MeglumineEchocardiography, StressStroke VolumeMagnetic Resonance ImagingGadolinium DTPARadionuclide AngiographyMagnetic Resonance AngiographyTelluriumTissue SurvivalDogsTime FactorsRadionuclide ImagingRestHyperemiaRegional Blood FlowMicrospheresNuclear MedicineIodine RadioisotopesHemodynamicsCerebrovascular CirculationMyocardial RevascularizationPrognosisMagnetic Resonance Imaging, CineBlood Flow VelocityAlgorithmsOxygen RadioisotopesFluorine RadioisotopesAmmoniaHeart DiseasesMyocardial StunningProspective StudiesCollateral CirculationChest PainROC CurveObserver VariationDiatrizoateSeverity of Illness IndexFluorocarbonsMicrovascular AnginaMyocardial ContractionAngioplasty, Balloon, CoronaryRisk Assessment