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- W2276207819 endingPage "362" @default.
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- W2276207819 abstract "We consider the problem of estimating the 2D vector displacement field in a heterogeneous elastic solid deforming under plane stress conditions. The problem is motivated by applications in quasistatic elastography. From precise and accurate measurements of one component of the 2D vector displacement field and very limited information of the second component, the method reconstructs the second component quite accurately. No a priori knowledge of the heterogeneous distribution of material properties is required. This method relies on using a special form of the momentum equations to filter ultrasound displacement measurements to produce more precise estimates. We verify the method with applications to simulated displacement data. We validate the method with applications to displacement data measured from a tissue mimicking phantom, and in-vivo data; significant improvements are noticed in the filtered displacements recovered from all the tests. In verification studies, error in lateral displacement estimates decreased from about 50% to about 2%, and strain error decreased from more than 250% to below 2%." @default.
- W2276207819 created "2016-06-24" @default.
- W2276207819 creator A5055350690 @default.
- W2276207819 creator A5056425704 @default.
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- W2276207819 date "2016-03-28" @default.
- W2276207819 modified "2023-09-25" @default.
- W2276207819 title "Recovering vector displacement estimates in quasistatic elastography using sparse relaxation of the momentum equation" @default.
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- W2276207819 doi "https://doi.org/10.1080/17415977.2016.1161034" @default.
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