2024
Speech motion anomaly detection via cross-modal translation of 4D motion fields from tagged MRI
Liu X, Xing F, Zhuo J, Stone M, Prince J, El Fakhri G, Woo J. Speech motion anomaly detection via cross-modal translation of 4D motion fields from tagged MRI. Proceedings Of SPIE--the International Society For Optical Engineering 2024, 12926: 129262w-129262w-5. PMID: 39238547, PMCID: PMC11377028, DOI: 10.1117/12.3006874.Peer-Reviewed Original ResearchCross-modal translationHealthy individualsTongue cancer patientsMotion fieldOut-of-distributionOne-class SVMPatient dataAnomaly detectionAnomaly detectorCancer patientsTagged MRISpeech-related disordersGeneralization capabilityReconstruction qualitySpeech qualityArticulatory-acoustic relationsPatientsSpeech waveformTraining setInnovative treatmentsMRITest setMotion patternsArticulatory featuresTraining translators
2023
Synthesizing audio from tongue motion during speech using tagged MRI via transformer
Liu X, Xing F, Prince J, Stone M, Fakhri G, Woo J. Synthesizing audio from tongue motion during speech using tagged MRI via transformer. Proceedings Of SPIE--the International Society For Optical Engineering 2023, 12464: 1246410-1246410-5. PMID: 38009135, PMCID: PMC10669779, DOI: 10.1117/12.2653345.Peer-Reviewed Original ResearchMotion fieldAudio waveformAdversarial training approachImprove synthesis qualityConvolutional decoderAudio dataSynthesis qualityTranslation networkData structureSpeech waveformTemporal modelTagged MRITongue motionTraining approachSpectrogramMuscle deformationSource of informationSpeechIntelligible speechFrameworkDecodingInformationPredictive informationEncodingNetworkQuantifying velopharyngeal motion variation in speech sound production using an audio-informed dynamic MRI atlas
Xing F, Jin R, Gilbert I, El Fakhri G, Perry J, Sutton B, Woo J. Quantifying velopharyngeal motion variation in speech sound production using an audio-informed dynamic MRI atlas. Proceedings Of SPIE--the International Society For Optical Engineering 2023, 12464: 124642m-124642m-6. PMID: 37621417, PMCID: PMC10448831, DOI: 10.1117/12.2654082.Peer-Reviewed Original ResearchMotion fieldReal-time speechHigh-dimensional datasetsAudio waveformAtlas spaceTemporal alignmentMotion variationsDatasetMagnetic resonance imagingMotion atlasMotion differencesSpeech variationImage acquisitionTaskSpeechMotion characteristicsDynamic magnetic resonance imagingPrincipal componentsImages
2022
Measuring strain in diffusion-weighted data using tagged magnetic resonance imaging
Xing F, Liu X, Reese T, Stone M, Wedeen V, Prince J, El Fakhri G, Woo J. Measuring strain in diffusion-weighted data using tagged magnetic resonance imaging. Proceedings Of SPIE--the International Society For Optical Engineering 2022, 12032: 1203205-1203205-7. PMID: 36777787, PMCID: PMC9911263, DOI: 10.1117/12.2610989.Peer-Reviewed Original ResearchMR spaceMotion fieldDeep neural networksEstimated motion fieldNeural networkDiffusion-weighted dataMedical imagesDynamic MR dataAlgorithm workflowStatic imagesDeformable organsTag dataData lack informationDiffeomorphic registrationEstimated strain valuesDiffusion tractographyInternal tongue musclesMR dataFiber tractographyMotion analysisTongue deformationAccurate strain measurementsMuscle fibersImaging excelsMagnetic resonance
2021
Muscle strain analysis from diffusion tractography and dynamic magnetic resonance imaging of the moving tongue
Xing F, Liu X, Reese T, Stone M, Wedeen V, Prince J, Fakhri G, Woo J. Muscle strain analysis from diffusion tractography and dynamic magnetic resonance imaging of the moving tongue. The Journal Of The Acoustical Society Of America 2021, 150: a190-a190. DOI: 10.1121/10.0008082.Peer-Reviewed Original ResearchFiber directionDynamic magnetic resonance imagingMagnetic resonance imagingStrain computationSusceptible to numerical errorsStrain estimationStrain tensorFiber geometryMuscle fiber directionStrain valuesNumerical errorsMotion fieldExtract strainsMuscle activation patternsMotion timeResonance imagingDMRI spaceStrain analysis
2020
Motion correction for PET data using subspace-based real-time MR imaging in simultaneous PET/MR
Marin T, Djebra Y, Han P, Chemli Y, Bloch I, Fakhri G, Ouyang J, Petibon Y, Ma C. Motion correction for PET data using subspace-based real-time MR imaging in simultaneous PET/MR. Physics In Medicine And Biology 2020, 65: 235022. PMID: 33263317, PMCID: PMC7985095, DOI: 10.1088/1361-6560/abb31d.Peer-Reviewed Original ResearchConceptsPositron emission tomography reconstructionMotion-corrected PET reconstructionsPET reconstructionMotion-corrected PET imagesIrregular respiratory motionMotion fieldMotion correction methodMotion correction approachIrregular motion patternsUndersampled k-space dataImage quality of positron emission tomographyQuality of positron emission tomographyMotion patternsLow-rank characteristicsRespiratory motionContrast-to-noise ratioEstimated motion fieldSurrogate signalsMotion correctionK-space dataImage qualityReal-time MR imagingSimultaneous PET/MRMotion artifact reductionPET/MR scanners
2018
Strain map of the tongue in normal and ALS speech patterns from tagged and diffusion MRI
Xing F, Prince J, Stone M, Reese T, Atassi N, Wedeen V, El Fakhri G, Woo J. Strain map of the tongue in normal and ALS speech patterns from tagged and diffusion MRI. Proceedings Of SPIE--the International Society For Optical Engineering 2018, 10574: 1057411. PMID: 29706684, PMCID: PMC5922778, DOI: 10.1117/12.2293028.Peer-Reviewed Original ResearchDiffusion tensor imagingAmyotrophic lateral sclerosis subjectsAmyotrophic lateral sclerosisNormal subjectsMagnetic resonance (MR) techniquesAmyotrophic lateral sclerosis patientsTagged magnetic resonance imagingMagnetic resonance imagingMR imaging techniquesMotion sequencesDeath of neuronsMotion fieldDiffusion tensor imaging dataSwallowing functionLines of actionTongue tissueResonance imagingFiber directionTongue musclesTongue motionSpeech patternsMotion atlasActive regionTensor imaging
2017
Speech Map: a statistical multimodal atlas of 4D tongue motion during speech from tagged and cine MR images
Woo J, Xing F, Stone M, Green J, Reese T, Brady T, Wedeen V, Prince J, Fakhri G. Speech Map: a statistical multimodal atlas of 4D tongue motion during speech from tagged and cine MR images. Computer Methods In Biomechanics And Biomedical Engineering Imaging & Visualization 2017, 7: 361-373. PMID: 31328049, PMCID: PMC6640640, DOI: 10.1080/21681163.2017.1382393.Peer-Reviewed Original ResearchMotion fieldMotion estimationTongue motionAnatomical configurationComplex motion fieldsCourse of speechCine MR imagingMotion informationInternal motionsGlossectomy patientsHealthy subjectsCine MRITongue functionMR imagingSpeech mappingClinical applicationAnatomical referenceTime course of speechTime courseSpeechA four-dimensional motion field atlas of the tongue from tagged and cine magnetic resonance imaging
Xing F, Prince J, Stone M, Wedeen V, Fakhri G, Woo J. A four-dimensional motion field atlas of the tongue from tagged and cine magnetic resonance imaging. Proceedings Of SPIE--the International Society For Optical Engineering 2017, 10133: 101331h-101331h-6. PMID: 29081569, PMCID: PMC5659618, DOI: 10.1117/12.2254363.Peer-Reviewed Original ResearchMotion fieldDense motion fieldTongue motionAtlas spaceThree-dimensional vector fieldsTagged MR imagesCine imagesImage atlasCine MR imagingAtlas constructionMagnetic resonanceVector fieldsFieldMotionImagesRepresentationQuantitative representationMR imagingAtlasDeformation fieldInter-subject variabilityResonanceCine magnetic resonance imagingInter-subject variationTensor
2016
Impact of motion and partial volume effects correction on PET myocardial perfusion imaging using simultaneous PET-MR
Petibon Y, Guehl N, Reese T, Ebrahimi B, Normandin M, Shoup T, Alpert N, Fakhri G, Ouyang J. Impact of motion and partial volume effects correction on PET myocardial perfusion imaging using simultaneous PET-MR. Physics In Medicine And Biology 2016, 62: 326-343. PMID: 27997375, PMCID: PMC5241952, DOI: 10.1088/1361-6560/aa5087.Peer-Reviewed Original ResearchConceptsSimultaneous PET-MRPET myocardial perfusion imagingMyocardial perfusion imagingPoint spread functionPoint-spread function correctionUngated dataMotion correctionPET-MRPartial volume effectsApparent wall thicknessMyocardial blood flowPartial volume effect correctionMR-based motion correctionMotion fieldPET-MR scannersPoint spread function modelPET dataPerfusion imagingImage qualityImpact of motionDynamic myocardial perfusion imagingAttenuation mapNon-rigid registrationAbsolute myocardial blood flowUngated images
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