2022
Simulation study of a 50 ps panel TOF PET imager
Pestotnik R, Razdevšek G, Dolenec R, Fakhri G, Križan P, Majewski S, Studen A, Korpar S. Simulation study of a 50 ps panel TOF PET imager. Journal Of Instrumentation 2022, 17: c12010. DOI: 10.1088/1748-0221/17/12/c12010.Peer-Reviewed Original ResearchPET scannerGamma detectorGamma raysTime-of-flight positron emission tomographyState-of-the-art clinical PET scannersGamma detection efficiencyClinical PET scannerImaging large objectsImproved time resolutionArtifact-free imagesDifferent phantomsDetector arrangementTime-of-flightBiograph VisionImage quality parametersDetection efficiencyTiming accuracyTime resolutionDetectorFWHMPositron emission tomographyReconstructed imagesRaysPositron emission tomography imagingMultichannel system
2014
Effect of time‐of‐flight and point spread function modeling on detectability of myocardial defects in PET
Schaefferkoetter J, Ouyang J, Rakvongthai Y, Nappi C, El Fakhri G. Effect of time‐of‐flight and point spread function modeling on detectability of myocardial defects in PET. Medical Physics 2014, 41: 062502. PMID: 24877836, PMCID: PMC4032408, DOI: 10.1118/1.4875725.Peer-Reviewed Original ResearchConceptsSignal-to-noise ratioDetection signal-to-noise ratioPoint spread functionObserver signal-to-noise ratioEffects of time-of-flightMyocardial defectsHuman observer performanceDefect detectionSlow convergenceTime-of-flight (TOFNon-PSFPostreconstruction smoothingFDG-PET dataTime-of-flightPSF reconstructionCombination of TOFNon-TOFIterationObserver performanceClinical practiceSpread functionReconstruction parametersReconstruction protocolsIterative methodDetection
2006
Optimizing Acquisition Parameters in TOF PET Scanners
Surti S, El-Fakhri G, Karp J. Optimizing Acquisition Parameters in TOF PET Scanners. 2006, 4: 2354-2359. DOI: 10.1109/nssmic.2006.354386.Peer-Reviewed Original ResearchNoise equivalent countCho SNRNon-TOF scannerScan timePET image qualityPatient dosageTime-of-flightSingles ratesOptimal acquisition parametersPET scannerTOF scannerDiameter cylinderIncreasing scan timeImage qualityReduce scan timeMeasure of signal-to-noise ratioSignal-to-noise ratioSpatial resolutionSNRAcquisition parametersLesion detectionLesionsTOFCylinderIncreased activity