Dense 2D displacement reconstruction from SPAMM-MRI with constrained elastic splines: Implementation and validation

  • Amir A. Amini
  • Yasheng Chen
  • Jean Sun
  • Vaidy Mani
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1496)


Efficient constrained thin-plate spline warps are proposed in this paper which can warp an area in the plane such that two embedded snake grids obtained from two SPAMM frames are brought into registration, interpolating a dense displacement vector field. The reconstructed vector field adheres to the known displacement information at the intersections, forces corresponding snakes to be warped into one another, and for all other points in the myocardium, where no information is available, a C1 continuous vector field is interpolated. The formalism proposed in this paper improves on our previous variational-based implementation and generalizes warp methods to include biologically relevant contiguous open curves, in addition to standard landmark points. The method has been extensively validated with a cardiac motion simulator, in addition to in-vivo tagging data sets.


Vector Field Conjugate Gradient Algorithm Length Error Dense Deformation Displacement Vector Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Amir A. Amini
    • 1
  • Yasheng Chen
    • 1
  • Jean Sun
    • 1
  • Vaidy Mani
    • 2
  1. 1.CVIA LabWashington University Medical CenterSt. Louis
  2. 2.Iterated Systems, Inc.AtlantaGeorgia

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