2004
Quantitative SPECT leads to improved performance in discrimination tasks related to prodromal Alzheimer's disease.
El Fakhri G, Kijewski M, Albert M, Johnson K, Moore S. Quantitative SPECT leads to improved performance in discrimination tasks related to prodromal Alzheimer's disease. Journal Of Nuclear Medicine 2004, 45: 2026-31. PMID: 15585477.Peer-Reviewed Original ResearchMeSH KeywordsAgedAlzheimer DiseaseBrainDementiaHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingTechnetium Tc 99m ExametazimeTomography, Emission-Computed, Single-PhotonConceptsProdromal Alzheimer's diseaseMemory problemsAlzheimer's diseaseDiagnosis of prodromal Alzheimer's diseaseDiagnosis of prodromal ADClinical tasksMRI volume estimationsVariable collimator responseFollow-up periodDementiaGeneral spectral methodConverter groupFollow-upProdromal ADUniform attenuation mapQuestion groupsPairwise discriminant analysisSubjectsQuantitative approachDiscrimination accuracyAnterior cingulate gyrusAttenuation mapNonuniform attenuation mapNormal groupCingulate gyrus
2003
MRI-Guided SPECT Perfusion Measures and Volumetric MRI in Prodromal Alzheimer Disease
El Fakhri G, Kijewski M, Johnson K, Syrkin G, Killiany R, Becker J, Zimmerman R, Albert M. MRI-Guided SPECT Perfusion Measures and Volumetric MRI in Prodromal Alzheimer Disease. JAMA Neurology 2003, 60: 1066-1072. PMID: 12925361, DOI: 10.1001/archneur.60.8.1066.Peer-Reviewed Original ResearchMeSH KeywordsAgedAlzheimer DiseaseBrainHumansMagnetic Resonance ImagingMemory DisordersPredictive Value of TestsRadiographyTechnetium Tc 99m ExametazimeTomography, Emission-Computed, Single-PhotonConceptsRostral anterior cingulateCaudal anterior cingulateMagnetic resonance imagingAnterior cingulateSuperior temporal sulcusPosterior cingulateBasal forebrainTemporal hornEntorhinal cortexTemporal sulcusGroup differencesMemory problemsNondemented patientsFollow-upQuantitative single-photon emissionProdromal phase of Alzheimer's diseaseReceiver operating characteristic curve analysisYears of follow-upAlzheimer's diseasePhase of Alzheimer's diseaseCharacteristic curve analysisVolumetric magnetic resonance imagingMagnetic resonance imaging analysisMagnetic resonance imaging measuresSPECT analysis
2001
Absolute activity quantitation in simultaneous 123I/99mTc brain SPECT.
El Fakhri G, Moore S, Maksud P, Aurengo A, Kijewski M. Absolute activity quantitation in simultaneous 123I/99mTc brain SPECT. Journal Of Nuclear Medicine 2001, 42: 300-8. PMID: 11216530.Peer-Reviewed Original ResearchMeSH KeywordsAlzheimer DiseaseBenzamidesBrainCerebellumCerebral CortexCerebrovascular CirculationCorpus CallosumHumansIodine RadioisotopesMonte Carlo MethodNeural Networks, ComputerParkinson DiseasePhantoms, ImagingPutamenPyrrolidinesRadiopharmaceuticalsSensitivity and SpecificityTechnetium Tc 99m ExametazimeTomography, Emission-Computed, Single-PhotonConceptsOrdered-subset expectation maximizationDistance-dependent collimator responseActivity quantitationActivity distributionIterative ordered-subsets expectation maximizationZubal brain phantomAsymmetric windowsSimulated normal populationPathological studiesDecay photonsBrain SPECTCollimator responseNonuniform attenuationDual-isotope imagingBrain phantomMonte Carlo simulationsCorpus callosumNormal populationPartial volume effectsCarlo simulationsCortical lobesAssessment of brain perfusionScatteringCross-talkBrain perfusion