2021
Measurement of the Parametrized Single-Photon Response Function of a Large Area Picosecond Photodetector for Time-of-Flight PET Applications
Worstell W, Sajedi S, Bläckberg L, Feng Y, Aviles M, Butler S, Ertley C, Cremer T, Foley M, Foley C, Hamel C, Lyashenko A, Minot M, Popecki M, Rivera T, Stochaj M, Fakhri G, Sabet H. Measurement of the Parametrized Single-Photon Response Function of a Large Area Picosecond Photodetector for Time-of-Flight PET Applications. IEEE Transactions On Radiation And Plasma Medical Sciences 2021, 5: 651-661. DOI: 10.1109/trpms.2021.3065890.Peer-Reviewed Original ResearchTransit time spreadSingle-photon levelLaser pulse intensityPhotomultiplier tubeSubpicosecond laserElectronic noisePulse intensityPET applicationsLAPPDLaser excitationOptical filtersTime spreadResponse functionPulsePulse timePhotocathodeSpe valuesEntry faceLaserVoltage controlTime responsePhotodetectorsExcitationPeak amplitudeVoltage
2017
A minimum-phase Shinnar-Le Roux spectral-spatial excitation RF pulse for simultaneous water and lipid suppression in 1H-MRSI of body extremities
Han P, Ma C, Deng K, Hu S, Jee K, Ying K, Chen Y, Fakhri G. A minimum-phase Shinnar-Le Roux spectral-spatial excitation RF pulse for simultaneous water and lipid suppression in 1H-MRSI of body extremities. Magnetic Resonance Imaging 2017, 45: 18-25. PMID: 28917812, PMCID: PMC5709164, DOI: 10.1016/j.mri.2017.09.008.Peer-Reviewed Original Research
2015
Continuous MR bone density measurement using water- and fat-suppressed projection imaging (WASPI) for PET attenuation correction in PET-MR
Huang C, Ouyang J, Reese T, Wu Y, Fakhri G, Ackerman J. Continuous MR bone density measurement using water- and fat-suppressed projection imaging (WASPI) for PET attenuation correction in PET-MR. Physics In Medicine And Biology 2015, 60: n369-n381. PMID: 26405761, PMCID: PMC4607313, DOI: 10.1088/0031-9155/60/20/n369.Peer-Reviewed Original ResearchConceptsAttenuation correctionUltrashort echo timeMR-based attenuation correctionProjection imagesPET attenuation correctionMR attenuation correctionPET-MRPulse sequenceEcho timeDensity variationsPET imagingCorrectionBone density variationWASPIDensity measurementsAttenuation variationsPhantomMR sequencesLack of signalPulseAttenuation