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dc.contributor.authorMcGrath, Deirdre M.
dc.contributor.authorFrancis, Susan T.
dc.date.accessioned2023-11-01T15:20:47Z
dc.date.available2023-11-01T15:20:47Z
dc.date.issued2022
dc.identifier.citationIglesias, M., McGrath, D.M., Tretyakov, M.V. and Francis, S.T. (2022) 'Ensemble Kalman inversion for magnetic resonance elastography', Physics in Medicine & Biology, 67(23), pp. 11 25. doi: 10.1088/1361-6560/ac9fa1 https://doi.org/10.1088/1361-6560/ac9fa1.en_US
dc.identifier.issn1361-6560
dc.identifier.issn0031-9155
dc.identifier.urihttp://hdl.handle.net/20.500.12904/17754
dc.description.abstractMagnetic resonance elastography (MRE) is an MRI-based diagnostic method for measuring mechanical properties of biological tissues. MRE measurements are processed by an inversion algorithm to produce a map of the biomechanical properties. In this paper a new and powerful method (ensemble Kalman inversion with level sets (EKI)) of MRE inversion is proposed and tested. The method has critical advantages: material property variation at disease boundaries can be accurately identified, and uncertainty of the reconstructed material properties can be evaluated by consequence of the probabilistic nature of the method. EKI is tested in 2D and 3D experiments with synthetic MRE data of the human kidney. It is demonstrated that the proposed inversion method is accurate and fast. Copyright Creative Commons Attribution license.
dc.description.urihttps://doi.org/10.1088/1361-6560/ac9fa1en_US
dc.language.isoenen_US
dc.subjectElasticity imaging techniquesen_US
dc.subjectMagnetic resonance imagingen_US
dc.titleEnsemble Kalman inversion for magnetic resonance elastographyen_US
dc.typeArticleen_US
rioxxterms.funderDefault funderen_US
rioxxterms.identifier.projectDefault projecten_US
rioxxterms.versionVoRen_US
rioxxterms.versionofrecord10.1088/1361-6560/ac9fa1en_US
rioxxterms.typeJournal Article/Reviewen_US
refterms.dateFCD2023-11-01T15:20:48Z
refterms.versionFCDVoR
refterms.dateFOA2023-11-01T15:20:48Z
refterms.panelUnspecifieden_US
html.description.abstractMagnetic resonance elastography (MRE) is an MRI-based diagnostic method for measuring mechanical properties of biological tissues. MRE measurements are processed by an inversion algorithm to produce a map of the biomechanical properties. In this paper a new and powerful method (ensemble Kalman inversion with level sets (EKI)) of MRE inversion is proposed and tested. The method has critical advantages: material property variation at disease boundaries can be accurately identified, and uncertainty of the reconstructed material properties can be evaluated by consequence of the probabilistic nature of the method. EKI is tested in 2D and 3D experiments with synthetic MRE data of the human kidney. It is demonstrated that the proposed inversion method is accurate and fast. Copyright Creative Commons Attribution license.en_US
rioxxterms.funder.project94a427429a5bcfef7dd04c33360d80cden_US


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