Approach-specific multi-grid anatomical modeling for neurosurgery simulation with public-domain and open-source software

• Published in: Proceedings of SPIE, the international society for optical engineering Vol. 7964
• Main Authors: Audette, Michel A, Rivière, Denis, Law, Charles, Ibanez, Luis, Aylward, Stephen R, Finet, Julien, Wu, Xunlei, Ewend, Matthew G
• Format: Journal Article
• Language: English
• Published: United States 01.03.2011
• ISSN: 0277-786X
• DOI: 10.1117/12.877883

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.