Positron-Emission TomographyTomography, Emission-ComputedFluorodeoxyglucose F18RadiopharmaceuticalsTomography, X-Ray ComputedFluorine RadioisotopesMultimodal ImagingCarbon RadioisotopesOxygen RadioisotopesBrainMagnetic Resonance ImagingRacloprideCopper RadioisotopesNitrogen RadioisotopesCerebrovascular CirculationTomography, Emission-Computed, Single-PhotonRadioactive TracersDeoxyglucoseSensitivity and SpecificityImage Processing, Computer-AssistedDiagnostic ImagingResearchTomographyWhole Body ImagingTissue DistributionDihydroxyphenylalanineGallium RadioisotopesReproducibility of ResultsPredictive Value of TestsRadioisotopesAniline CompoundsReceptors, Dopamine D2Brain MappingRubidium RadioisotopesNeoplasm StagingMisonidazoleCoronary CirculationGlucoseSalicylamidesFlumazenilTomography, Optical CoherencePapioLung NeoplasmsRadiochemistryTomography, Spiral ComputedMolecular ImagingTetrabenazinePapio anubisCorpus StriatumIsotope LabelingTreatment OutcomeDideoxynucleosidesProspective StudiesReceptors, Dopamine D3Time FactorsRetrospective StudiesLymphatic MetastasisDopamine AntagonistsNortropanesHeterocyclic Compounds, 1-RingRegional Blood FlowPhantoms, ImagingHeartSolitary Pulmonary NoduleCerebral CortexTomography, OpticalDipyridamoleDopamineAlzheimer DiseaseNeoplasmsPrognosisDiprenorphineSpiperonePutamenIncidental FindingsCaudate NucleusMyocardial Perfusion ImagingReference ValuesFrontal LobeMultidetector Computed TomographyAlgorithmsBlood VolumeFluorineArabinofuranosyluracilImaging, Three-DimensionalNuclear MedicineImage Interpretation, Computer-AssistedHodgkin DiseaseFollow-Up StudiesRadioligand AssayBenzothiazolesContrast MediaAutoradiographyOxygen ConsumptionIodine RadioisotopesTissue SurvivalThiazolesThiosemicarbazonesAmmoniaResearch Design