2021
Multipanel Limited Angle PET System With 50 ps FWHM Coincidence Time Resolution: A Simulation Study
Razdevšek G, Dolenec R, Križan P, Majewski S, Studen A, Korpar S, Fakhri G, Pestotnik R. Multipanel Limited Angle PET System With 50 ps FWHM Coincidence Time Resolution: A Simulation Study. IEEE Transactions On Radiation And Plasma Medical Sciences 2021, 6: 721-730. DOI: 10.1109/trpms.2021.3115704.Peer-Reviewed Original ResearchPET systemFWHM coincidence timing resolutionCoincidence time resolutionLutetium oxyorthosilicate crystalsExtended cardiac-torsoFlat-panel detectorClinical PET/CT scannerSpatial resolutionDerenzo phantomPlanar detectorsCount rateScanner geometryCardiac-torsoHot-rodDetection efficiencyParallax errorLow detection efficiencyIncreasing crystal lengthPET/CT scannerTime resolutionImage qualityScanner designAngular coverageFWHMCrystal length
2014
4D numerical observer for lesion detection in respiratory‐gated PET
Lorsakul A, Li Q, Trott C, Hoog C, Petibon Y, Ouyang J, Laine A, Fakhri G. 4D numerical observer for lesion detection in respiratory‐gated PET. Medical Physics 2014, 41: 102504. PMID: 25281979, PMCID: PMC4281099, DOI: 10.1118/1.4895975.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsComputer SimulationFluorodeoxyglucose F18HumansImage Interpretation, Computer-AssistedLung DiseasesModels, BiologicalMonte Carlo MethodMotionPhantoms, ImagingPositron-Emission TomographyRadiopharmaceuticalsRegression AnalysisRespiratory-Gated Imaging TechniquesSignal-To-Noise RatioConceptsRespiratory-gated positron emission tomographyMotion-corrected imagesDetection signal-to-noise ratioLesion detection taskNumerical observationsLesion detection performanceSignal-to-noise ratioPositron emission tomography sinogramsSpherical lesionsHotelling observerMotion correction methodPositron emission tomographyGeant4 ApplicationTomographic EmissionChannelized Hotelling observerAnthropomorphic phantomScanner geometryOSEM algorithmMonte Carlo simulationsPET framesImprove lesion detectionLesion detectionSignal-to-noise ratio measurementsActivity distributionConventional 3D approach