Multiresolution MR elastography using nonlinear inversion.

  title={Multiresolution MR elastography using nonlinear inversion.},
  author={Matthew D. J. McGarry and Elijah E. W. Van Houten and Curtis L. Johnson and John G. Georgiadis and Bradley P. Sutton and John B. Weaver and Keith D. Paulsen},
  journal={Medical physics},
  volume={39 10},
PURPOSE Nonlinear inversion (NLI) in MR elastography requires discretization of the displacement field for a finite element (FE) solution of the "forward problem", and discretization of the unknown mechanical property field for the iterative solution of the "inverse problem". The resolution requirements for these two discretizations are different: the forward problem requires sufficient resolution of the displacement FE mesh to ensure convergence, whereas lowering the mechanical property… CONTINUE READING
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