2008
Realistic PET Monte Carlo Simulation with Pixelated Block Detectors, Light Sharing, Random Coincidences and Dead-Time Modeling
Guérin B, Fakhri G. Realistic PET Monte Carlo Simulation with Pixelated Block Detectors, Light Sharing, Random Coincidences and Dead-Time Modeling. IEEE Transactions On Nuclear Science 2008, 55: 942-952. PMID: 19079776, PMCID: PMC2600659, DOI: 10.1109/tns.2008.924064.Peer-Reviewed Original ResearchBlock detectorsDiscovery STRandom coincidencesSimSET softwareMonte Carlo transport codeElectronics dead-timeNEMA NU 2Detector dead-timeDead-timeMonte Carlo simulation softwarePositron emission tomography scannerSimulated spatial resolutionPET modelingSpatial resolutionWhole scannerCoincidence spectraPhoton interactionsEnergy spectrumNU 2Light sharingTransport codeSingles ratesCrystal elementsDead-time modelMonte Carlo simulations
2006
Monte Carlo Modeling of Cascade Gamma Rays in PET
Zhu X, Fakhri G. Monte Carlo Modeling of Cascade Gamma Rays in PET. 2011 IEEE Nuclear Science Symposium Conference Record 2006, 6: 3522-3525. DOI: 10.1109/nssmic.2006.353759.Peer-Reviewed Original ResearchCascade gamma raysGamma raysGamma-ray emitting isotopesDetector dead timeMonte Carlo modelPET imagingGamma eventsScatter fractionQuantitative PET imagingTorso phantomSingles ratesMonte Carlo simulationsDecrease of intensityHigh-activity regionsPhantom experimentsReconstructed volumePhantomRaysCarlo simulationsDead timeDetectorReconstructed imagesCascade typeImage intensityMonteOptimizing 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