2021
First Investigation of List mode MLEM Reconstruction for Fast DC-SPECT System Design Optimization
Feng Y, Bläckberg L, Fakhri G, Worstell W, Sabet H. First Investigation of List mode MLEM Reconstruction for Fast DC-SPECT System Design Optimization. 2021, 00: 1-3. DOI: 10.1109/nss/mic44867.2021.9875864.Peer-Reviewed Original ResearchFWHM spatial resolutionCorrection of scatterAsymmetric geometryMaximum likelihood expectation maximizationLikelihood expectation maximizationSystem's imaging resolutionLM-MLEMMonte Carlo implementationMLEM reconstructionDetector headMonte-CarloSystem matrix modelSimultaneous high resolutionDesign optimizationCardiac SPECTMatrix modelSystem resolutionMC methodSpatial resolutionSystem design optimizationImage reconstructionDynamic cardiac SPECTDesign iterationsSystem sensitivityImage resolution
2018
MR-based motion correction for cardiac PET parametric imaging: a simulation study
Guo R, Petibon Y, Ma Y, El Fakhri G, Ying K, Ouyang J. MR-based motion correction for cardiac PET parametric imaging: a simulation study. EJNMMI Physics 2018, 5: 3. PMID: 29388075, PMCID: PMC5792384, DOI: 10.1186/s40658-017-0200-9.Peer-Reviewed Original ResearchNon-motion-correctedPositron emission tomography-magnetic resonanceMR-based motion correctionRespiratory motionMotion correctionActivity distributionMotion correction methodRespiratory gatingPET sinogramsNoise levelCardiac gatingMRI simulationOne-tissue compartment modelNoise realizationsMC methodPET dataCardiac motionReduce motion blurParametric imagesIncreased noise levelConclusionsThis simulation studyArterial input functionPET imagingGateMyocardial regions