Paul Han, PhD
Assistant Professor of Radiology and Biomedical ImagingCards
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Research
Publications
2026
High-resolution in utero SV2A PET imaging of the nonhuman primate brain using the NeuroEXPLORER.
Mehta S, Sun H, Micali N, Holden D, Fowles K, Rossano S, Zhang J, Ma C, Han P, Lee W, Duque A, Rakic P, Groman S, Carson R, Scheinost D, Toyonaga T. High-resolution in utero SV2A PET imaging of the nonhuman primate brain using the NeuroEXPLORER. Journal Of Cerebral Blood Flow And Metabolism : Official Journal Of The International Society Of Cerebral Blood Flow And Metabolism 2026, 271678x261429044. PMID: 41823342, PMCID: PMC12987752, DOI: 10.1177/0271678x261429044.Peer-Reviewed Original ResearchDistribution volume ratioMaternal brainIn vivo markerFetal brainPET imagingSynaptic developmentPregnant rhesus macaquesRegional distribution volume ratiosMarker of synaptic densitySynaptic vesicle glycoprotein 2APET scannerNon-invasive toolNonhuman primate brainPET quantificationBrain-dedicated PET scannersNeuroExplorerRhesus macaquesSynaptic densityBiograph mCTOccipital lobeOccipital regionBrainMotion correctionPETPrimate brainFree‐Running Three‐Dimensional Cardiac Extracellular Volume Mapping in a Single Scan With Mid‐Scan Contrast Injection
Lee W, Han P, Marin T, Mounime I, Chi D, Bijari F, Normandin M, Fakhri G, Ma C. Free‐Running Three‐Dimensional Cardiac Extracellular Volume Mapping in a Single Scan With Mid‐Scan Contrast Injection. Magnetic Resonance In Medicine 2026 PMID: 41656589, DOI: 10.1002/mrm.70293.Peer-Reviewed Original ResearchSignal modelContrast injectionECV mapsMR signal modelCine imagesThree-dimensionalK-space dataInversion recoveryExtracellular volume mappingSpace alignmentContrast agent injectionCardiac MR imagesEjection fractionIn vivo studiesCardiac cine imagingEstimated ejection fractionHealthy subjectsHematocrit levelsAgent injectionMR imagingBlood samplesHeart motionGradient echo readout
2025
In vivo 3D myocardial membrane potential mapping in humans using PET/MRI
Bijari F, Han P, Marin T, Lee W, Chemli Y, Gertsenshteyn I, Mounime I, Djebra Y, Chi D, Normandin M, Ma C, Fakhri G. In vivo 3D myocardial membrane potential mapping in humans using PET/MRI. EJNMMI Research 2025, 15: 93. PMID: 40715686, PMCID: PMC12297085, DOI: 10.1186/s13550-025-01287-7.Peer-Reviewed Original ResearchMembrane potentialExtracellular volume fraction measurementsExtracellular volume fraction mappingBolus-plus-infusion protocolT1 mapping sequencesVolume of distributionWritten Informed ConsentCardiac PET/MR imagingRigid image registrationHumans in vivoContrast agent injectionPET motion correctionFree breathingTracer volume of distributionImage registrationBolus injectionCardiac MRMitochondrial membrane potentialCardiac diseaseHealthy subjectsPET/MR imagingImaging studiesTreatment monitoringAgent injectionPET tracersFast 3D cardiac extracellular volume mapping and cine imaging via continuous free-breathing acquisition with mid-scan contrast agent injection
Lee W, Han P, Marin T, Mounime I, Bijari F, Normandin M, Fakhri G, Ma C. Fast 3D cardiac extracellular volume mapping and cine imaging via continuous free-breathing acquisition with mid-scan contrast agent injection. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2025 DOI: 10.58530/2025/0789.Peer-Reviewed Original ResearchContrast agent injectionExtracellular volume mappingCine imagesContrast agent administrationExtracellular volumeFree-breathing scanFree-breathing acquisitionECV mapsAgent injectionAgent administrationTotal scan timeCardiac imaging methodsImage reconstructionScan timeCardiac motionSpace alignmentCineTime efficiencyA Manifold Learning-based Approach for Denoising in Deuterium Metabolic Imaging
Chi D, Han P, De Feyter H, de Graaf R, Ma C. A Manifold Learning-based Approach for Denoising in Deuterium Metabolic Imaging. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2025 DOI: 10.58530/2025/3083.Peer-Reviewed Original ResearchDeuterium Metabolic Imaging Denoising Using a Linear Tangent Space Alignment (LTSA) Model and Performance Analysis
Chi D, Han P, De Feyter H, de Graaf R, Ma C. Deuterium Metabolic Imaging Denoising Using a Linear Tangent Space Alignment (LTSA) Model and Performance Analysis. 2025, 00: 1-5. DOI: 10.1109/isbi60581.2025.10980807.Peer-Reviewed Original ResearchCramer-Rao Lower BoundSignal-to-noise ratioNumerical simulation studyCramer-RaoImage denoisingSpace alignmentHuman body non-invasivelyBody non-invasivelyLower BoundPerformance analysisIntrinsic low-dimensional manifold structureLow-dimensional manifold structureDeuterium metabolic imagingSimulation study
2024
Multimodality Molecular Imaging of Brain Tumor Using Simultaneous [18F]FET-PET/MRSI
Ma C, Han P, Marin T, Zhuo Y, Shih H, Fakhri G. Multimodality Molecular Imaging of Brain Tumor Using Simultaneous [18F]FET-PET/MRSI. 2024, 00: 1-2. DOI: 10.1109/nss/mic/rtsd57108.2024.10656528.Peer-Reviewed Original ResearchList-mode dataMR spectroscopic imagingSpatial resolutionAccurate brain tumor delineationMR physicsIsotropic resolutionBrain tumor delineationImprove treatment planningSpectroscopic imagingTumor delineationSignal-to-noise ratioIntact blood-brain barrierImaging speedAmino acid radiotracerImaging timeMR signalHigher proliferation activityStructural MRTreatment planningBlood-brain barrierMR spectroscopic imaging dataMolecular imaging of brain tumorsTumor involvementTumor infiltrationTumor marginsPET motion correction using subspace-based real-time MR imaging in simultaneous PET/MR
Mounime I, Marin T, Han P, Ouyang J, Gori P, Angelini E, Fakhri G, Ma C. PET motion correction using subspace-based real-time MR imaging in simultaneous PET/MR. 2024, 00: 1-1. DOI: 10.1109/nss/mic/rtsd57108.2024.10657647.Peer-Reviewed Original ResearchOrdered-subset expectation maximizationMotion correctionGated reconstructionsMotion-corrected PET reconstructionsPET eventsCardiac motion phasesMotion correction methodCardiac motionMotion phaseReconstructed dynamic imagesPET reconstructionReal-time MR imagingSimultaneous PET/MRPatient motionSoft tissue contrastDynamic MR image reconstructionReference phaseMitigate artifactsLow-rank propertyMR image reconstructionPositron emission tomographyManifold learning frameworkSpatial resolutionBlurring artifactsImage reconstructionFree-breathing 3D cardiac extracellular volume (ECV) mapping using a linear tangent space alignment (LTSA) model
Lee W*, Han P*, Marin T, Mounime IBG, Eslahi SV, Djebra Y, Chi D, Bijari FJ, Normandin MD, El Fakhri G, and Ma C. Free-breathing 3D cardiac extracellular volume (ECV) mapping using a linear tangent space alignment (LTSA) model. Magnetic Resonance in Medicine. 2024; doi: 10.1002/mrm.30284.Peer-Reviewed Original ResearchFree‐breathing 3D cardiac extracellular volume (ECV) mapping using a linear tangent space alignment (LTSA) model
Lee W, Han P, Marin T, Mounime I, Eslahi S, Djebra Y, Chi D, Bijari F, Normandin M, Fakhri G, Ma C. Free‐breathing 3D cardiac extracellular volume (ECV) mapping using a linear tangent space alignment (LTSA) model. Magnetic Resonance In Medicine 2024, 93: 536-549. PMID: 39402014, PMCID: PMC11606777, DOI: 10.1002/mrm.30284.Peer-Reviewed Original ResearchExtracellular volume mappingContrast agent injectionExtracellular volumeGradient echo readoutECV mapsAgent injectionWhole heartEcho readoutExtracellular volume valuesVoxel-by-voxelInversion recovery sequenceSpatial resolutionScan timeImaging timeIn vivo studiesHealthy volunteersModel-based methodsRecovery sequenceInjectionReadout
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