Approach-specific multi-grid anatomical modeling for neurosurgery simulation with public-domain and open-source software
2011
We present on-going work on multi-resolution sulcal-separable meshing for approach-specific neurosurgery simulation, in
conjunction multi-grid and Total Lagrangian Explicit Dynamics finite elements. Conflicting requirements of interactive
nonlinear finite elements and small structures lead to a multi-grid framework. Implications for meshing are explicit control
over resolution, and prior knowledge of the intended neurosurgical approach and intended path. This information is used to
define a subvolume of clinical interest, within some distance of the path and the target pathology. Restricted to this
subvolume are a tetrahedralization of finer resolution, the representation of critical tissues, and sulcal separability
constraint for all mesh levels.
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