Magnetic Resonance SpectroscopyMagnetic Resonance ImagingCreatinePhosphocreatineCholineAspartic AcidProtonsElectron Spin Resonance SpectroscopyNuclear Magnetic Resonance, BiomolecularPhosphorusBrainEnergy MetabolismInositolPhosphorus IsotopesCarbon IsotopesMagnetic Resonance AngiographyFluorinePhosphatesLactic AcidMagnetic Resonance Imaging, CineHydrogen-Ion ConcentrationBrain ChemistryGlutamic AcidGlutamineLipid MetabolismSpectroscopy, Near-InfraredAdenosine TriphosphateDiffusion Magnetic Resonance ImagingSpectrum AnalysisPhosphorylcholineMuscle, SkeletalModels, MolecularProtein ConformationHydrogenGlucoseContrast MediaSpectrophotometry, InfraredLactatesOxygenKineticsMolecular Sequence DataMass SpectrometryReproducibility of ResultsLiverTime FactorsOxidation-ReductionImage Processing, Computer-AssistedMetabolomicsDeuteriumSurface Plasmon ResonanceSolutionsGlycerylphosphorylcholineBrain MappingChromatography, High Pressure LiquidSensitivity and SpecificityCarbohydrate SequenceMolecular StructureGlycolysisBrain NeoplasmsSpin LabelsProtein Structure, SecondaryCircular DichroismWaterAmino Acid SequenceBrain DiseasesMetabolomeGyrus CinguliSpectrum Analysis, RamanOccipital LobeNeurochemistryReference ValuesMolecular ConformationGadolinium DTPAProtein BindingChemistryChemical PhenomenaMyocardiumOxygen ConsumptionCarbohydrate ConformationGadoliniumNitrogen IsotopesBinding SitesLipidsChromatography, Thin LayerSpectrometry, Mass, Fast Atom BombardmentFrontal LobeImage Interpretation, Computer-AssistedImaging, Three-DimensionalTemperaturePyruvic AcidAlgorithmsAcetatesImage EnhancementSpectrometry, FluorescenceFourier AnalysisTriglyceridesModels, ChemicalCerebral CortexPhospholipidsGlutarates