Radionuclide ImagingTechnetiumBrainMagnetic Resonance ImagingHematoma, SubduralBrain NeoplasmsBrain DiseasesPsychoses, AlcoholicTomography, X-Ray ComputedBrain MappingBrain ChemistryHematoma, Epidural, CranialBrain InjuriesImage Processing, Computer-AssistedCerebral HemorrhageBrain IschemiaCerebrovascular DisordersCerebral InfarctionCerebral CortexRadiopharmaceuticalsTomography, Emission-Computed, Single-PhotonCerebrovascular CirculationImage Interpretation, Computer-AssistedReproducibility of ResultsBrain EdemaPositron-Emission TomographyTime FactorsFunctional LateralityBrain StemNeuropsychological TestsBrain AbscessPredictive Value of TestsRetrospective StudiesNeuronsHypoxia, BrainBlood-Brain BarrierBrain Damage, ChronicBrain InfarctionRats, Sprague-DawleyDeep Brain StimulationNerve Tissue ProteinsHippocampusTissue DistributionImaging, Three-DimensionalAlzheimer DiseaseSensitivity and SpecificityDisease Models, AnimalTomography, Emission-ComputedCerebellumAtrophyBrain WavesAstrocytesMice, Inbred C57BLRats, WistarNeural PathwaysImmunohistochemistryAgingAnimals, NewbornFluorodeoxyglucose F18ElectroencephalographyMolecular Sequence DataAlgorithmsNerve NetImage EnhancementRNA, MessengerAnalysis of VarianceBehavior, AnimalCerebral VentriclesGliomaBrain Injury, ChronicFrontal LobeNeuroimagingOrgan SpecificityCognitionBrain ConcussionEncephalitisAmino Acid SequenceModels, NeurologicalNeuroprotective AgentsArtifactsNeurogliaAutoradiographyOrganotechnetium CompoundsMice, TransgenicCognition DisordersAmyloid beta-PeptidesStereotaxic TechniquesThalamusOrgan SizeNatriuretic Peptide, BrainBrain Diseases, MetabolicTreatment OutcomeRats, Inbred StrainsMice, KnockoutDiffusion Magnetic Resonance ImagingOxygenPhantoms, ImagingProspective StudiesAstrocytomaPregnancy