2013
Feasibility of Using Distal Endpoints for In-Room PET Range Verification of Proton Therapy
Grogg K, Zhu X, Min C, Winey B, Bortfeld T, Paganetti H, Shih H, Fakhri G. Feasibility of Using Distal Endpoints for In-Room PET Range Verification of Proton Therapy. IEEE Transactions On Nuclear Science 2013, 60: 3290-3297. DOI: 10.1109/tns.2013.2278140.Peer-Reviewed Original ResearchPET distributionsNuclear reactionsProton therapyMC-PETSimulated positron emission tomographyIn-roomMonte CarloPET resolutionPositron emission tomographyRange verificationBiological washoutDose depthThreshold energyDose deliveryCross sectionPlanned doseMC simulationsIndividual beamsSimPETOne-dimensional profilesRadiological decayBeamDistal endpointsProtonNative nucleiFeasibility of using distal endpoints for In-room PET Range Verification of Proton Therapy
Grogg K, Zhu X, Min C, Winey B, Bortfeld T, Paganetti H, Shih H, El Fakhri G. Feasibility of using distal endpoints for In-room PET Range Verification of Proton Therapy. IEEE Transactions On Nuclear Science 2013, 60: 3890-3894. PMID: 24464031, PMCID: PMC3900284, DOI: 10.1109/nssmic.2012.6551892.Peer-Reviewed Original ResearchPET distributionsNuclear reactionsProton therapyMC-PETSimulated positron emission tomographyMonte CarloPET resolutionPositron emission tomographyRange verificationBiological washoutDose depthThreshold energyDose deliveryCross sectionPlanned doseMC simulationsIndividual beamsSimPETOne-dimensional profilesIn-roomRadiological decayBeamDistal endpointsProtonNative nuclei
2012
MO‐A‐213AB‐07: Evaluation of Distal Dose Surface with In‐Room PET for Proton Therapy Monitoring
Min C, Zhu X, Grogg K, Winey B, Fakhri G, Bortfeld T, Shih H, Paganetti H. MO‐A‐213AB‐07: Evaluation of Distal Dose Surface with In‐Room PET for Proton Therapy Monitoring. Medical Physics 2012, 39: 3860-3860. PMID: 28517508, DOI: 10.1118/1.4735759.Peer-Reviewed Original ResearchProton dose distributionsMeasured PET imagesDose surfaceDose distributionIn-roomMonte CarloProton therapy monitoringBeam's eye viewPET activitySimulated PET imagesPET imagingGantry roomsTreatment verificationTreatment headBeam deliveryClinical trialsProton therapyPassive scatteringMC simulationsBeam directionTreated volumeRoot-mean-square deviationBeamImage registrationSimulated PET
2007
Fast Monte Carlo based joint iterative reconstruction for simultaneous SPECT imaging
Ouyang J, Fakhri G, Moore S. Fast Monte Carlo based joint iterative reconstruction for simultaneous SPECT imaging. Medical Physics 2007, 34: 3263-3272. PMID: 17879789, DOI: 10.1118/1.2756601.Peer-Reviewed Original ResearchConceptsMC-JOSEMEnergy windowFast Monte CarloSignal-to-noise ratioScatter correction methodOrdered-subsets expectation-maximizationMonte CarloOrdered-subsets expectation-maximization algorithmIterative reconstruction algorithmPrimary photonsReconstruction algorithmPhoton transportSeptal penetrationDetector responseMC simulationsIterative reconstructionAttenuation distributionStandard OSEMPhotonsProjection dataPatient-specific activityDetectorReconstructed imagesScatteringEstimation of scattering
1999
A new correction method for cross-talk using artificial neural networks: validation in simultaneous technetium and iodine cerebral imaging
Fakhri G, Maksud P, Habert M, Todd-Pokropek A, Aurengo A. A new correction method for cross-talk using artificial neural networks: validation in simultaneous technetium and iodine cerebral imaging. 2011 IEEE Nuclear Science Symposium Conference Record 1999, 2: 1000-1004 vol.2. DOI: 10.1109/nssmic.1999.845830.Peer-Reviewed Original ResearchEnergy window methodMonte CarloHuman brain phantomI-123 imagingGeometric phantomsBrain phantomMC simulationsTc-99mCorrection methodDual-isotope studiesActivity distributionM imagesI-123PhantomAssessment of brain perfusionCross-talkRadionuclidesTc-99Cerebral imagingCorrectionBrain perfusionClinical potentialBackprojectionMonteCarlo