Myocardial Perfusion ImagingTomography, Emission-Computed, Single-PhotonCoronary CirculationPerfusionTechnetium Tc 99m SestamibiThallium RadioisotopesOrganotechnetium CompoundsDipyridamoleImage Processing, Computer-AssistedRadiopharmaceuticalsHeartCardiac-Gated Single-Photon Emission Computer-Assisted TomographyPerfusion ImagingGated Blood-Pool ImagingExercise TestMyocardial IschemiaImage Interpretation, Computer-AssistedRubidium RadioisotopesThalliumCoronary AngiographyCoronary Artery DiseaseOrganophosphorus CompoundsNitrogen RadioisotopesContrast MediaCoronary DiseaseSensitivity and SpecificityAdenosineReproducibility of ResultsTomography, Emission-ComputedMyocardial ReperfusionVasodilator AgentsArtifactsCoronary VesselsMyocardial InfarctionFractional Flow Reserve, MyocardialVentriculography, First-PassPredictive Value of TestsImage EnhancementVentricular Function, LeftElectrocardiographyEchocardiographyCoronary StenosisPositron-Emission TomographyMyocardiumTomography, X-Ray ComputedVentricular Dysfunction, LeftGadolinium DTPAFeasibility StudiesSubtraction TechniqueMicrocirculationDiatrizoate MeglumineEchocardiography, StressDobutamineAngina PectorisRadioisotopesAlgorithmsMagnetic Resonance AngiographyRadiographic Image EnhancementObserver VariationDogsStroke VolumeTime FactorsRadiographic Image Interpretation, Computer-AssistedGamma CamerasRadionuclide ImagingHyperemiaTissue SurvivalMicrospheresTelluriumHemodynamicsRadionuclide AngiographyTechnetiumMagnetic Resonance Imaging, CineRegional Blood FlowImaging, Three-DimensionalRestBlood Flow VelocityMagnetic Resonance ImagingOximesOxygen RadioisotopesNuclear MedicineMyocardial RevascularizationAmmoniaPrognosisCollateral CirculationHeart DiseasesProspective StudiesFluorocarbonsMicrovascular AnginaChest PainSeverity of Illness IndexDiatrizoateAngioplasty, Balloon, CoronaryIodobenzenesROC CurveMyocardial ContractionFluorine RadioisotopesPhantoms, ImagingMyocardial StunningCardiac-Gated Imaging Techniques