Tomography, Emission-Computed, Single-PhotonPhotonsOrganotechnetium CompoundsTomography, X-Ray ComputedTomography, Emission-ComputedTechnetium Tc 99m ExametazimeOximesThallium RadioisotopesRadiopharmaceuticalsPositron-Emission TomographyIofetamineTechnetiumIodine RadioisotopesComputersCerebrovascular CirculationIodobenzenesTechnetium Tc 99m SestamibiThalliumXenon RadioisotopesTechnetium Tc 99m PyrophosphateHeartBrainTropanesAmphetaminesMagnetic Resonance ImagingCardiac-Gated Single-Photon Emission Computer-Assisted TomographySensitivity and SpecificityTomographyMyocardial Perfusion ImagingDiagnostic ImagingAcetazolamideImage Processing, Computer-AssistedOrganophosphorus CompoundsComputer SimulationExercise TestPhantoms, ImagingCinanserinOrganometallic CompoundsMultimodal ImagingMyocytes, CardiacFluorodeoxyglucose F18Dopamine Plasma Membrane Transport ProteinsPredictive Value of TestsIndium RadioisotopesFrontal LobeTomography, Optical CoherenceThalamic DiseasesCerebral RevascularizationRadioactive TracersTechnetium Tc 99m MedronateRegional Blood FlowNortropanesRadioisotopesTime FactorsMyocardial IschemiaSpondylolysisReproducibility of ResultsTissue SurvivalGamma CamerasDipyridamoleElectrocardiographySpectrometry, GammaMyocardial InfarctionTechnetium Tc 99m Aggregated AlbuminImage EnhancementCoronary AngiographyDominance, CerebralMolecular ImagingCoronary DiseaseImaging, Three-DimensionalCoronary CirculationRadionuclide ImagingFlumazenilTissue DistributionMyocardiumCardiac OutputTomography, OpticalEchocardiographyTemporal LobeMoyamoya DiseaseModels, StructuralNitrogen RadioisotopesTomography, Spiral ComputedNuclear MedicineVentricular Dysfunction, LeftSkull NeoplasmsImage Interpretation, Computer-AssistedPyrrolidines3-IodobenzylguanidineAlgorithmsVentricular Function, LeftFollow-Up StudiesContrast MediaGated Blood-Pool ImagingTreatment OutcomeOccipital LobeCoronary Artery DiseaseProspective StudiesSturge-Weber SyndromeDobutamine