2022
Co-attention spatial transformer network for unsupervised motion tracking and cardiac strain analysis in 3D echocardiography
Ahn S, Ta K, Thorn S, Onofrey J, Melvinsdottir I, Lee S, Langdon J, Sinusas A, Duncan J. Co-attention spatial transformer network for unsupervised motion tracking and cardiac strain analysis in 3D echocardiography. Medical Image Analysis 2022, 84: 102711. PMID: 36525845, PMCID: PMC9812938, DOI: 10.1016/j.media.2022.102711.Peer-Reviewed Original ResearchConceptsSpatial transformer networkMotion trackingNoisy displacement fieldReliable motion estimationMotion tracking methodCardiac strain analysisTransformer networkDisplacement fieldDisplacement pathsMotion fieldTracking methodMotion estimationExperimental resultsStrain analysisSuperior performanceTemporal constraintsCardiac motionTrackingRegularization functionDependent featuresEchocardiography imagesNetworkPrior assumptionsField
2001
Estimation of 3D left ventricular deformation from echocardiography
Papademetris X, Sinusas A, Dione D, Duncan J. Estimation of 3D left ventricular deformation from echocardiography. Medical Image Analysis 2001, 5: 17-28. PMID: 11231174, DOI: 10.1016/s1361-8415(00)00022-0.Peer-Reviewed Original ResearchConceptsDense motion fieldIsotropic linear elastic modelRegional cardiac deformationLinear elastic modelMotion fieldTerms of strainCardiac deformationFiber directionElastic modelDeformationHeart wallGood agreementHeart deformationImage sequencesWallEstimationSpecific directionUltrasound imagesQuantitative estimationInitial correspondenceField
2000
Estimating 3D Strain from 4D Cine-MRI and Echocardiography: In-Vivo Validation
Papademetris X, Sinusas A, Dione D, Constable R, Duncan J. Estimating 3D Strain from 4D Cine-MRI and Echocardiography: In-Vivo Validation. Lecture Notes In Computer Science 2000, 1935: 678-686. DOI: 10.1007/978-3-540-40899-4_70.Peer-Reviewed Original Research
1999
3D Cardiac Deformation from Ultrasound Images
Papademetris X, Sinusas A, Dione D, Duncan J. 3D Cardiac Deformation from Ultrasound Images. Lecture Notes In Computer Science 1999, 1679: 420-429. DOI: 10.1007/10704282_46.Peer-Reviewed Original ResearchDense motion fieldRegional cardiac deformationCardiac deformationLinear elastic modelMotion fieldTerms of strainFiber directionElastic modelDeformationHeart wallUltrasound imagesGood agreementHeart deformationImage sequencesWallSpecific directionQuantitative estimationInitial correspondenceFieldFlow