2019
Data-driven voluntary body motion detection and non-rigid event-by-event correction for static and dynamic PET
Lu Y, Gallezot JD, Naganawa M, Ren S, Fontaine K, Wu J, Onofrey JA, Toyonaga T, Boutagy N, Mulnix T, Panin VY, Casey ME, Carson RE, Liu C. Data-driven voluntary body motion detection and non-rigid event-by-event correction for static and dynamic PET. Physics In Medicine And Biology 2019, 64: 065002. PMID: 30695768, DOI: 10.1088/1361-6560/ab02c2.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsAnimalsDogsFluorodeoxyglucose F18HaplorhiniHumansImage Processing, Computer-AssistedMonitoring, PhysiologicMovementOrgan MotionPositron-Emission TomographyRespirationRespiratory-Gated Imaging TechniquesConceptsCentroid of distribution
2018
Respiratory Motion Compensation for PET/CT with Motion Information Derived from Matched Attenuation-Corrected Gated PET Data
Lu Y, Fontaine K, Mulnix T, Onofrey JA, Ren S, Panin V, Jones J, Casey ME, Barnett R, Kench P, Fulton R, Carson RE, Liu C. Respiratory Motion Compensation for PET/CT with Motion Information Derived from Matched Attenuation-Corrected Gated PET Data. Journal Of Nuclear Medicine 2018, 59: 1480-1486. PMID: 29439015, PMCID: PMC6126443, DOI: 10.2967/jnumed.117.203000.Peer-Reviewed Original ResearchMeSH KeywordsArtifactsFour-Dimensional Computed TomographyHumansImage Processing, Computer-AssistedMovementPositron Emission Tomography Computed TomographyRespirationRespiratory-Gated Imaging TechniquesConceptsMotion correction frameworkMotion informationReference gatePET reconstructionMotion estimation accuracyGated PET dataMotion compensation approachMotion correctionMotion compensation methodMotion estimationRespiratory motion compensationAttenuation correction artifactsLung cancer datasetMotion compensationCT imagesNAC approachReconstruction algorithmPET dataPET imagesNew frameworkInaccurate localizationCancer datasetsBreathing variationsAttenuation correction mapsHuman datasets
2015
Pulmonary imaging using respiratory motion compensated simultaneous PET/MR
Dutta J, Huang C, Li Q, Fakhri G. Pulmonary imaging using respiratory motion compensated simultaneous PET/MR. Medical Physics 2015, 42: 4227-4240. PMID: 26133621, PMCID: PMC4474958, DOI: 10.1118/1.4921616.Peer-Reviewed Original ResearchConceptsRespiratory motionContrast-to-noise ratioClinical patient studiesPulse sequenceHigh-intensity featuresXCAT studyLow proton densityXCAT simulationPatient studiesXCAT phantomAttenuation mapBiograph mMRComplete data acquisitionSimultaneous PET/MRNonrigid registrationPET/MR scannersPET/magnetic resonanceMagnetic susceptibilityProton densityQuantitative accuracyRelaxation timePulmonary imagingLung lesionsBlurring artifactsDeformation field
2014
4D numerical observer for lesion detection in respiratory‐gated PET
Lorsakul A, Li Q, Trott C, Hoog C, Petibon Y, Ouyang J, Laine A, Fakhri G. 4D numerical observer for lesion detection in respiratory‐gated PET. Medical Physics 2014, 41: 102504. PMID: 25281979, PMCID: PMC4281099, DOI: 10.1118/1.4895975.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsComputer SimulationFluorodeoxyglucose F18HumansImage Interpretation, Computer-AssistedLung DiseasesModels, BiologicalMonte Carlo MethodMotionPhantoms, ImagingPositron-Emission TomographyRadiopharmaceuticalsRegression AnalysisRespiratory-Gated Imaging TechniquesSignal-To-Noise RatioConceptsRespiratory-gated positron emission tomographyMotion-corrected imagesDetection signal-to-noise ratioLesion detection taskNumerical observationsLesion detection performanceSignal-to-noise ratioPositron emission tomography sinogramsSpherical lesionsHotelling observerMotion correction methodPositron emission tomographyGeant4 ApplicationTomographic EmissionChannelized Hotelling observerAnthropomorphic phantomScanner geometryOSEM algorithmMonte Carlo simulationsPET framesImprove lesion detectionLesion detectionSignal-to-noise ratio measurementsActivity distributionConventional 3D approachEnd-expiration respiratory gating for a high-resolution stationary cardiac SPECT system
Chan C, Harris M, Le M, Biondi J, Grobshtein Y, Liu YH, Sinusas AJ, Liu C. End-expiration respiratory gating for a high-resolution stationary cardiac SPECT system. Physics In Medicine And Biology 2014, 59: 6267-6287. PMID: 25256033, PMCID: PMC4528968, DOI: 10.1088/0031-9155/59/20/6267.Peer-Reviewed Original ResearchMeSH KeywordsCardiac-Gated Single-Photon Emission Computer-Assisted TomographyHumansMyocardial Perfusion ImagingRespiratory-Gated Imaging Techniques
2012
Respiratory bellows‐gated late gadolinium enhancement of the left atrium
Peters DC, Shaw JL, Knowles BR, Moghari MH, Manning WJ. Respiratory bellows‐gated late gadolinium enhancement of the left atrium. Journal Of Magnetic Resonance Imaging 2012, 38: 1210-1214. PMID: 23197465, PMCID: PMC3812253, DOI: 10.1002/jmri.23954.Peer-Reviewed Original ResearchMeSH KeywordsAtrial FibrillationContrast MediaFemaleGadolinium DTPAHeart AtriaHumansImage EnhancementMagnetic Resonance Imaging, CineMaleMiddle AgedReproducibility of ResultsRespiratory-Gated Imaging TechniquesSensitivity and SpecificityConceptsRight inferior pulmonary veinLate gadolinium enhancementRight superior PVAtrial fibrillationGadolinium enhancementRespiratory compensationScar presenceInferior pulmonary veinNav gatingPresence of scarAtrial imagingSuperior PVBlinded gradingPulmonary veinsLeft atriumTrue scarsPatientsQuadrantScarImproved assessmentFibrillationAtrium
2011
Respiratory motion correction for quantitative PET/CT using all detected events with internal—external motion correlation
Liu C, Alessio AM, Kinahan PE. Respiratory motion correction for quantitative PET/CT using all detected events with internal—external motion correlation. Medical Physics 2011, 38: 2715-2723. PMID: 21776808, PMCID: PMC3107832, DOI: 10.1118/1.3582692.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsArtifactsHumansImage EnhancementImage Interpretation, Computer-AssistedMotionMovementNeoplasmsPositron-Emission TomographyReproducibility of ResultsRespiratory MechanicsRespiratory-Gated Imaging TechniquesSensitivity and SpecificityStatistics as TopicSubtraction TechniqueTomography, X-Ray ComputedConceptsPET listmode dataInternal motionsExternal motion signalExternal respiratory signalListmode dataTumor motion informationRespiratory-gated PET imagesCT attenuation mapsMotion correlationPhantom experimentsRespiratory motion signalMotion degradationMotion correctionTumor motionSUVmax increaseAttenuation mapResidual motionAttenuation correctionSinogramRespiratory motion correctionQuantitative PET/CTMotionReference frameRespiratory motionPET images
2010
Respiratory bellows revisited for motion compensation: Preliminary experience for cardiovascular MR
Santelli C, Nezafat R, Goddu B, Manning WJ, Smink J, Kozerke S, Peters DC. Respiratory bellows revisited for motion compensation: Preliminary experience for cardiovascular MR. Magnetic Resonance In Medicine 2010, 65: 1097-1102. PMID: 21413074, PMCID: PMC3126878, DOI: 10.1002/mrm.22687.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsArtifactsCoronary VesselsFemaleHumansImage EnhancementImage Interpretation, Computer-AssistedMagnetic Resonance AngiographyMagnetic Resonance Imaging, CineMaleMotionPilot ProjectsReproducibility of ResultsRespiratory-Gated Imaging TechniquesSensitivity and SpecificityYoung AdultNoncontrast SSFP pulmonary vein magnetic resonance angiography: Impact of off‐resonance and flow
Hu P, Stoeck CT, Smink J, Peters DC, Ngo L, Goddu B, Kissinger KV, Goepfert LA, Chan J, Hauser TH, Rofsky NM, Manning WJ, Nezafat R. Noncontrast SSFP pulmonary vein magnetic resonance angiography: Impact of off‐resonance and flow. Journal Of Magnetic Resonance Imaging 2010, 32: 1255-1261. PMID: 21031533, PMCID: PMC2975425, DOI: 10.1002/jmri.22356.Peer-Reviewed Original ResearchMeSH KeywordsArtifactsAtrial FibrillationBlood Flow VelocityElectrocardiographyHumansImaging, Three-DimensionalMagnetic Resonance AngiographyPulmonary VeinsRespiratory-Gated Imaging TechniquesConceptsMagnetic resonance angiographyPulmonary veinsHealthy subjectsResonance angiographyAtrial fibrillation patientsSuperior pulmonary veinBlood flow velocityHealthy adult subjectsSignal voidVoid artifactsFibrillation patientsAF patientsPV bloodPV flowLeft atriumBlood flowAdult subjectsTrigger delaySignal void artifactsPatientsAngiographySubjectsCauseSSFP sequencePulmonaryQuiescent period respiratory gating for PET/CT
Liu C, Alessio A, Pierce L, Thielemans K, Wollenweber S, Ganin A, Kinahan P. Quiescent period respiratory gating for PET/CT. Medical Physics 2010, 37: 5037-5043. PMID: 20964223, PMCID: PMC2945743, DOI: 10.1118/1.3480508.Peer-Reviewed Original ResearchMeSH KeywordsAgedHumansMiddle AgedPositron-Emission TomographyRespirationRespiratory-Gated Imaging TechniquesRestRetrospective StudiesTomography, X-Ray ComputedConceptsDisplacement signalQuiescent period gatingGating methodRespiratory motion compensationFraction of countsMotion compensationImproved signalSimulation dataNoise propertiesSignal histogramImage noiseMotion blurringImproved compromiseNoise increasesPET framesMaximum amplitudeComputer simulationsMotion artifactsReduced motionNoiseGatePhase gatingPatient respiratory tracesImage quality
2008
2D free‐breathing dual navigator‐gated cardiac function validated against the 2D breath‐hold acquisition
Peters DC, Nezafat R, Eggers H, Stehning C, Manning WJ. 2D free‐breathing dual navigator‐gated cardiac function validated against the 2D breath‐hold acquisition. Journal Of Magnetic Resonance Imaging 2008, 28: 773-777. PMID: 18777547, PMCID: PMC2562245, DOI: 10.1002/jmri.21417.Peer-Reviewed Original Research
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