2024
Design Optimisation of a Flat-Panel, Limited-Angle TOF-PET Scanner: A Simulation Study
Orehar M, Dolenec R, Fakhri G, Korpar S, Križan P, Razdevšek G, Marin T, Žontar D, Pestotnik R. Design Optimisation of a Flat-Panel, Limited-Angle TOF-PET Scanner: A Simulation Study. Diagnostics 2024, 14: 1976. PMID: 39272760, PMCID: PMC11487429, DOI: 10.3390/diagnostics14171976.Peer-Reviewed Original ResearchTime-of-flight positron emission tomographyTOF-PET scannerNEMA NU 2Evaluate spatial resolutionPET detectorsNU 2Scintillation materialsBiograph VisionRing scannerLimited-angleScanner designReadout levelsPoint sourcesFlat panel geometryClinical scannerSpatial resolutionReadout strategySingle-crystalImage qualityScintillationScannerFlat panelDesign parametersDetectorDesign optimisation
2023
Next generation PET imager
Pestotnik R, Gascón D, Gola A, Benlloch J, Alamo J, Barberá J, Dolenec R, Fernández-Tenllado J, Gómez S, Grogg K, Guberman D, Korpar S, Križan P, Majewski S, Manera R, Marin T, Mariscal-Castilla A, Mauricio J, Merzi S, Morera C, Orehar M, Pavon G, Penna M, Razdevšek G, Seljak A, Studen A, Fakhri G. Next generation PET imager. 2023, 00: 1-1. DOI: 10.1109/nssmicrtsd49126.2023.10338336.Peer-Reviewed Original ResearchPET imaging systemsReadout electronicsTime resolutionDetected scintillation photonsDual-sided readoutFast readout electronicsTime-of-flight measurementsLYSO crystal arrayFast-timing applicationsFlat-panel detectorTotal-body PET imagingScintillation photonsPET detectorsSilicon photomultipliersScintillation materialsXCAT phantomPET systemPanel detectorPhoto sensorCrystal arrayImaging systemTime spreadTiming precisionScintillationSignal-to-noise ratio
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
High Sensitivity and High Resolution Dynamic Brain-Dedicated TOF-DOI PET Scanner
Bläckberg L, Sanchez D, Borghi G, Ballabriga R, Sajedi S, Gómez S, Fakhri G, Mazzi A, Paternoster G, Majewski S, Gola A, Gascón D, Sabet H. High Sensitivity and High Resolution Dynamic Brain-Dedicated TOF-DOI PET Scanner. 2020, 00: 1-5. DOI: 10.1109/nss/mic42677.2020.9507837.Peer-Reviewed Original ResearchCoincidence time resolutionField of viewFWHM coincidence timing resolutionTime resolutionIntrinsic detector resolutionLow noise ASICsLYSO scintillator arrayScintillator arraySiPM arrayDetector conceptLYSO crystalsDetector volumeDetector resolutionPET detectorsSiPM signalsReduce image blurringDOI positionsHigh PDEPET scannerTiming jitterSimultaneous high resolutionScanner designTransport simulationsDetectorIntegrated light sensors
2015
A Sub-MM Spatial Resolution LYSO: CE Detector for Small Animal PET
Sabet H, Bläckberg L, Ozsahin D, Sitek A, El-Fakhri G. A Sub-MM Spatial Resolution LYSO: CE Detector for Small Animal PET. 2015, 1-4. DOI: 10.1109/nssmic.2015.7582201.Peer-Reviewed Original ResearchLaser induced optical barriersOptical barrierLYSO:Ce crystalsIncident gamma raysLYSO:CeInter-pixel gapPixelated scintillatorLYSO crystalsPET detectorsPixelated crystalsCe crystalsGamma raysSub-mmMechanical pixelationLYSOCE detectorSimulation codeBarrier sizeAnimal PETHigh-spatial resolutionScintillationSmall-animal PETDetectorLaser energy densityEnergy density