2006
Monte Carlo-based compensation for patient scatter, detector scatter, and crosstalk contamination in In-111 SPECT imaging
Moore S, Ouyang J, Park M, Fakhri G. Monte Carlo-based compensation for patient scatter, detector scatter, and crosstalk contamination in In-111 SPECT imaging. Nuclear Instruments And Methods In Physics Research Section A Accelerators Spectrometers Detectors And Associated Equipment 2006, 569: 472-476. DOI: 10.1016/j.nima.2006.08.079.Peer-Reviewed Original ResearchScatter projectionsPatient scatterDetector scatterOrgan activity estimatesPhoton interaction pointIterative reconstruction algorithmDetector effectsEnergy binsReconstruction algorithmDelta scatteringTorso phantomPoint spread functionSegmented CT scanInteraction pointOSEM reconstructionNumerical phantomDetectorScatteringScattering mapSpherical tumorSpread functionImage noisePhantomActivity concentrationsActivity estimation
2005
Fast Monte Carlo Estimation of Patient and Detector Scatter and Crosstalk Contamination in SPECT Imaging
Ouyang J, Moore S, Park M, Fakhri G. Fast Monte Carlo Estimation of Patient and Detector Scatter and Crosstalk Contamination in SPECT Imaging. 2005, 3: 1560-1562. DOI: 10.1109/nssmic.2005.1596616.Peer-Reviewed Original ResearchDetector effectsEnergy windowTriple-energy window methodConvolution-based forced detectionPhoton interaction pointSimulate photon interactionsLower energy windowScattering mapCompton scatteringPhoton contributionEnergy binsPhoton interactionsMultiple photonsDetector scatterImaging isotopesCoherent scatteringAttenuation phantomMonte Carlo methodPhotoelectric effectInteraction pointPhantom experimentsDetectorCrosstalk contaminationScatteringCarlo methodRealistic Monte Carlo PET Simulation with Pixellated Block Detectors, Light Sharing and Randoms Modeling
Guérin B, Fakhri G. Realistic Monte Carlo PET Simulation with Pixellated Block Detectors, Light Sharing and Randoms Modeling. 2005, 3: 1563-1567. DOI: 10.1109/nssmic.2005.1596617.Peer-Reviewed Original ResearchPET scannerBlock detectorsPhoton transportRandom coincidencesSimSET softwareMonte Carlo transport codeNEMA NU 2Model of photon transportEnergy weighted averageModel photon transportLight-sharingEnergy spectrumNU 2Light sharingTransport codeCrystal elementsMonte Carlo simulationsPET simulationsVery good agreementInteraction pointPET acquisitionDetection crystalAttenuation distributionDetectorCarlo simulations