2017
HOSVD-Based Multigraph Cuts for Joint Segmentation of Multi-Channel Images
Chowdhury S, Li Q, Fakhri G, Dutta J. HOSVD-Based Multigraph Cuts for Joint Segmentation of Multi-Channel Images. 2017, 00: 1-2. DOI: 10.1109/nssmic.2017.8532828.Peer-Reviewed Original ResearchImage contextMedical imaging contextMulti-channel imagesJoint segmentation approachSingular value decompositionImage segmentationVoxel similarityLesion segmentationSegmentation approachJoint segmentationEffective segmentationValue decompositionMulti-channelImaging of glioblastomaComposite graphMultiple disease typesSingular vectorsDynamic PET imagesLaplacian tensor
2016
Pharmacokinetic Evaluation of the Tau PET Radiotracer 18F-T807 (18F-AV-1451) in Human Subjects
Wooten D, Guehl N, Verwer E, Shoup T, Yokell D, Zubcevik N, Vasdev N, Zafonte R, Johnson K, Fakhri G, Normandin M. Pharmacokinetic Evaluation of the Tau PET Radiotracer 18F-T807 (18F-AV-1451) in Human Subjects. Journal Of Nuclear Medicine 2016, 58: 484-491. PMID: 27660144, PMCID: PMC5334185, DOI: 10.2967/jnumed.115.170910.Peer-Reviewed Original ResearchConceptsDistribution volume ratioTraumatic brain injuryMetabolite-corrected arterial input functionPET imagingPlasma radioactivity concentrationsTemporal cortexDynamic PET imagesTotal volume of distributionVolume of distributionTraumatic brain injury subjectsMesial temporal cortexArterial blood samplesPosterior cingulate gyrusFocal uptakeSUV ratioHuman subjectsArterial input functionPosterior corpus callosumBolus injectionPharmacokinetic evaluation
2013
State of the Art in Cardiac Hybrid Technology: PET/MR
Nappi C, El Fakhri G. State of the Art in Cardiac Hybrid Technology: PET/MR. Current Cardiovascular Imaging Reports 2013, 6: 338-345. PMID: 24073295, PMCID: PMC3780420, DOI: 10.1007/s12410-013-9213-5.Peer-Reviewed Original ResearchMagnetic resonance imagingPositron emission tomographyAbsence of ionizing radiationPositron emission tomography systemLimitations of PET/MRISensitivity of positron emission tomographyRespiratory motionPhotomultiplier tubeClinical cardiac applicationsSoft tissue contrastPET-CTDetection chainPositron emission tomography dataCardiac morphologyCardiac PET/MRIClinical promisePET/MRIEmission tomographySimultaneous PET/MRIImaging modalitiesPET imagingResonance imagingClinical settingDynamic PET imagesTissue contrast
2011
A Nonlocal Averaging Technique for Kinetic Parameter Estimation from Dynamic PET Data
Dutta J, Fakhri G, Leahy R, Li Q. A Nonlocal Averaging Technique for Kinetic Parameter Estimation from Dynamic PET Data. 2011, 3562-3566. DOI: 10.1109/nssmic.2011.6153669.Peer-Reviewed Original ResearchNonlocal meansDenoising schemeGaussian filtering techniquePatlak parametric imagesDenoised time seriesDenoising frameworkClustering stepDistributed natureGaussian filterLocal neighborhoodVoxel-wise estimationHigh noise levelsData setsDenoisingFiltering techniqueSchemeDataLow varianceNoise levelTime activity curvesEstimation of kinetic parametersDynamic PET imagesParameter estimationVoxelImages