Denoising Moving Heart Wall Fibers Using Cartan Frames

  title={Denoising Moving Heart Wall Fibers Using Cartan Frames},
  author={B. Samari and Tristan Aumentado-Armstrong and G. Strijkers and M. Froeling and Kaleem Siddiqi},
Current denoising methods for diffusion weighted images can obtain high quality estimates of local fiber orientation in static structures. However, recovering reliable fiber orientation from in vivo data is considerably more difficult. To address this problem we use a geometric approach, with a spatio-temporal Cartan frame field to model spatial (within time-frame) and temporal (between time-frame) rotations within a single consistent mathematical framework. The key idea is to calculate the… Expand


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Constitutive modelling of passive myocardium: a structurally based framework for material characterization
  • G. Holzapfel, R. Ogden
  • Computer Science, Biology
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2009
This paper treats the left ventricular myocardium as a non-homogeneous, thick-walled, nonlinearly elastic and incompressible material and develops a general theoretical framework based on invariants associated with the three directions, then develops a structurally based model that accounts for the muscle fibre direction and the myocyte sheet structure. Expand