2019
Body motion detection and correction in cardiac PET: Phantom and human studies
Sun T, Petibon Y, Han P, Ma C, Kim S, Alpert N, Fakhri G, Ouyang J. Body motion detection and correction in cardiac PET: Phantom and human studies. Medical Physics 2019, 46: 4898-4906. PMID: 31508827, PMCID: PMC6842053, DOI: 10.1002/mp.13815.Peer-Reviewed Original ResearchConceptsList-mode dataMotion-compensated image reconstructionMotion correctionCenter of massPET list-mode dataMotion correction methodMotion detectionMotion estimationImage reconstructionPatient body motionDegrade image qualityNonrigid registrationImage qualityMotion transformationCoincident distributionBody motion detectionCardiac positron emission tomographyBack-projection techniqueCovariance matrixImage volumesBody motionPositron emission tomographyBack-projectionReference framePhantomBulk motion detection and correction using list-mode data for cardiac PET imaging
Sun T, Petibon Y, Han P, Ma C, Kim S, Alpert N, Fakhri G, Ouyang J. Bulk motion detection and correction using list-mode data for cardiac PET imaging. Proceedings Of SPIE--the International Society For Optical Engineering 2019, 11072: 110722f-110722f-5. DOI: 10.1117/12.2534701.Peer-Reviewed Original ResearchList-mode dataCardiac PET imagingPET list-mode dataMotion-corrected imagesLines of responsePET imaging applicationsCardiac PETImage qualityBulk motionCardiac PET studiesMotion correctionPET imagingBrain PETMotion estimationData-driven approachMotion detectionImaging applicationsImage spaceMoving frameStatic reference frameMotion transformationCorrectionCenter positionMotionReference frame
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 courseSpeech
2014
Accuracy of Respiratory Motion Compensated Image Reconstruction Using 4DPET-Derived Deformation Fields
Dutta J, Chelala M, Shao X, Lorsakul A, Li Q, Fakhri G. Accuracy of Respiratory Motion Compensated Image Reconstruction Using 4DPET-Derived Deformation Fields. 2014, 1-4. DOI: 10.1109/nssmic.2014.7430924.Peer-Reviewed Original ResearchAttenuation-corrected PET imagesXCAT phantomNon-attenuation-corrected PET imagesMotion-compensated image reconstructionImage reconstructionMotion informationPET imagingMotion estimationPET gatingAttenuation mapBreathing motionPET quantitationSoftware GATEXCATDeformation fieldPhantomAccuracy of motionGround truthGateAnatomical imagesFieldMotionUpper abdomenPulmonary lesionsMonte