2022
Cardiac PET/MR Basics
Petibon Y, Ma C, Ouyang J, El Fakhri G. Cardiac PET/MR Basics. 2022, 21-35. DOI: 10.1007/978-3-031-09807-9_2.Peer-Reviewed Original ResearchMeasuring organ motionPET motion correctionFront-end electronicsScintillation detectorOrgan motionMotion correctionAttenuation correctionPET/MR scannersAbility of MRISimultaneous imaging modalityPET/MR technologyAttenuation propertiesHybrid PET/MR scannerPET/MRPre-clinicalImaging modalitiesClinical applicationMRIOrgan systemsCardiac applicationsImaging opportunitiesCorrectionDetectorSpatiotemporal resolutionElectron
2015
Accelerated acquisition of tagged MRI for cardiac motion correction in simultaneous PET‐MR: Phantom and patient studies
Huang C, Petibon Y, Ouyang J, Reese T, Ahlman M, Bluemke D, El Fakhri G. Accelerated acquisition of tagged MRI for cardiac motion correction in simultaneous PET‐MR: Phantom and patient studies. Medical Physics 2015, 42: 1087-1097. PMID: 25652521, PMCID: PMC4312342, DOI: 10.1118/1.4906247.Peer-Reviewed Original ResearchConceptsPET motion correctionMotion correctionSimultaneous PET-MRTMR dataPET list-mode dataPET-MRList-mode dataCardiac motion correctionPET-MR scannersImage qualityParallel imagingAcquisition timePET imagingRespiratory motionCompressive sensingMotion fieldAttenuation correctionDefect contrastModerate acceleration factorsDegradation of image qualityTagged MRCardiac phantomLong acquisition timesPhantomAccurate motion field
2013
Magnetic Resonance-Based Motion Correction for Positron Emission Tomography Imaging
Ouyang J, Li Q, Fakhri G. Magnetic Resonance-Based Motion Correction for Positron Emission Tomography Imaging. Seminars In Nuclear Medicine 2013, 43: 60-67. PMID: 23178089, PMCID: PMC3508789, DOI: 10.1053/j.semnuclmed.2012.08.007.Peer-Reviewed Original ResearchConceptsMotion correctionClinical whole-body PET scannersMotion-corrected PET imagesWhole-body PET scannerPET motion correctionNonrigid image registration algorithmAcquired MR imagesRespiratory motionImage registration algorithmPET scannerSimultaneous PET/magnetic resonancePET reconstructionSimultaneous PET/MRPatient motionImage qualityIterative PET reconstructionPET/MR studiesPET/magnetic resonanceAttenuating mediaImage artifactsRegistration algorithmSpatial resolutionReconstruction algorithmPositron emission tomographyMR imaging techniques
2011
Nonrigid PET motion compensation in the lower abdomen using simultaneous tagged‐MRI and PET imaging
Guérin B, Cho S, Chun S, Zhu X, Alpert N, Fakhri G, Reese T, Catana C. Nonrigid PET motion compensation in the lower abdomen using simultaneous tagged‐MRI and PET imaging. Medical Physics 2011, 38: 3025-3038. PMID: 21815376, PMCID: PMC3125080, DOI: 10.1118/1.3589136.Peer-Reviewed Original ResearchConceptsPET-MRI acquisitionsMotion correctionPET motion compensationPET motion correctionRespiratory motion correctionMotion-corrected reconstructionMotion correction strategiesWhole-body PET studiesSignal-to-noise ratioPET reconstruction algorithmDeformable phantomNCAT phantomEffects of motionAttenuation mapDetected coincidencesPET-MRIGated framesBrain scannerSimulations of tumorsSignal-to-noisePhantomSusceptibility artifactsReconstruction algorithmPhase domainsNonrigid deformation
2010
MRI-Assisted PET Motion Correction for Neurologic Studies in an Integrated MR-PET Scanner
Catana C, Benner T, van der Kouwe A, Byars L, Hamm M, Chonde D, Michel C, Fakhri G, Schmand M, Sorensen A. MRI-Assisted PET Motion Correction for Neurologic Studies in an Integrated MR-PET Scanner. Journal Of Nuclear Medicine 2010, 52: 154-161. PMID: 21189415, PMCID: PMC3125596, DOI: 10.2967/jnumed.110.079343.Peer-Reviewed Original ResearchConceptsLines of responseMotion correctionPET motion correctionRigid-body motion correctionMC algorithmPET volumesQuantitative accuracyMR-PET scannersPET image qualityScatter sinogramEcho-planar imagingHoffman phantomSinogram spaceList-modeRandom coincidencesMotion tracking techniquePrototype scannerPhantom volumeImage qualityMR-PETMC methodPET dataSinogramPhantomVolunteer studies