2024
Long-Axial Field-Of-View Limited-Angle PET System with Ultra-High Time-Of-Flight and Depth-Of-Interaction
Marin T, Chemli Y, Razdevšek G, Zhuo Y, Orehar M, Najmaoui Y, Dolenec R, Gascon D, Gola A, Benlloch J, Alamo J, Barbera J, Fernandez-Tenllado J, Gomez S, Korpar S, Krizan P, Majewski S, Manera R, Mariscal-Castilla A, Mauricio J, Merzi S, Morera C, Pavon G, Pavon N, Penna M, Seljak A, Studen A, Zontar D, Pestotnik R, Fakhri G. Long-Axial Field-Of-View Limited-Angle PET System with Ultra-High Time-Of-Flight and Depth-Of-Interaction. 2024, 00: 1-2. DOI: 10.1109/nss/mic/rtsd57108.2024.10658297.Peer-Reviewed Original ResearchDepth of interactionDepth-of-interaction resolutionTime-of-flightPET systemImage quality metricsTime-of-flight resolutionField-of-view scanningSacrificing image qualityQuality metricsSilicon photomultipliersDetector panelPET instrumentationImage qualityResolution systemAngle geometryGeometric correctionReduce costsPerformancePhotomultiplierSystemResolutionMetricsElectron
2021
A layered single-side readout depth of interaction time-of-flight-PET detector
Bläckberg L, Sajedi S, Fakhri G, Sabet H. A layered single-side readout depth of interaction time-of-flight-PET detector. Physics In Medicine And Biology 2021, 66: 045025. PMID: 33570050, PMCID: PMC8130834, DOI: 10.1088/1361-6560/abd592.Peer-Reviewed Original ResearchConceptsDepth of interactionMulti-pixel photon counterDepth-of-interaction determinationDepth-of-interaction informationTime resolutionTime resolution valuesReduced crystal thicknessNon-DOI detectorsOptical photonsScintillator arrayPET detectorsPhoton counterCrystal pixelsReadout schemeCrystal arrayCrystal thicknessTransport simulationsDetectorPhotodetector arrayReadoutPixel sizePhotodetectorsResolution valuesFirst layerSignal amplitude
2020
Limited-angle TOF-PET for intraoperative surgical applications: latest results
Sajedi S, Bläckberg L, Fakhri G, Sabet H. Limited-angle TOF-PET for intraoperative surgical applications: latest results. 2020, 00: 1-3. DOI: 10.1109/nss/mic42677.2020.9507853.Peer-Reviewed Original ResearchCoincidence time resolutionWater phantomTOF-PETSphere-to-background activity ratiosLesion phantomsPET detector moduleDepth of interactionPET detector technologySmall-area detectorsDiameter spheresTime-of-flight (TOFPhantom depthDetector modulesCrystal pixelsDetector technologyDetector headFlight (TOFTime resolutionPhantomReduce FNRDetectorConventional gammaLarger-areaPixel dimensionsAngle geometry
2018
A novel depth-of-interaction rebinning strategy for ultrahigh resolution PET
Kim K, Dutta J, Groll A, Fakhri G, Meng L, Li Q. A novel depth-of-interaction rebinning strategy for ultrahigh resolution PET. Physics In Medicine And Biology 2018, 63: 165011. PMID: 30040073, PMCID: PMC6375090, DOI: 10.1088/1361-6560/aad58c.Peer-Reviewed Original ResearchConceptsDepth of interactionReconstructed imagesAlternating direction methodReconstructed image qualityPoisson log-likelihoodImage qualitySub-sampling methodPositron emission tomography systemReduce noise effectsDOI layersReconstruction frameworkDetector pixel sizePoint source experimentsQuadratic surrogatesCdZnTe detectorsAnimal positron emission tomographyLog-likelihoodDirection methodSmall animal positron emission tomographySource ExperimentPhoton countingRebinning methodSystem matrixNoise effectsSinogramLight Spread Manipulation in Scintillators Using Laser Induced Optical Barriers
Bläckberg L, Moebius M, Fakhri G, Mazur E, Sabet H. Light Spread Manipulation in Scintillators Using Laser Induced Optical Barriers. IEEE Transactions On Nuclear Science 2018, 65: 2208-2215. PMID: 30905974, PMCID: PMC6424510, DOI: 10.1109/tns.2018.2809570.Peer-Reviewed Original ResearchDepth of interactionOptical barrierLYSO:Ce detectorsDepth-of-interaction informationLYSO:CeHigh-resolution PET imagesRefractive indexResolution PET imagingScintillation lightScintillation detectorDetector edgesReadout configurationDetector typesMonolithic crystalsBarrier patternsCrystal bulkCE detectorScintillationDetectorLYSOLiOBPixel arrayPET imagingLaserLight transport simulation