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Proceedings Paper

Generation of smooth and accurate surface models for surgical planning and simulation
Author(s): Tobias Moench; Mathias Neugebauer; Peter Hahn; Bernhard Preim
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Paper Abstract

Surface models from medical image data (intensity, binary) are used for evaluating spatial relationships for intervention or radiation treatment planning. Furthermore, surface models are employed for generating volume meshes for simulating e.g. tissue deformation or blood flow. In such applications, smoothness and accuracy of the models are essential. These aspects may be influenced by image preprocessing, the mesh generation algorithm and mesh postprocessing (smoothing, simplification). Thus, we evaluated the influences of different image preprocessing methods (Gaussian smoothing, morphological operators, shape-based interpolation), model generation (Marching Cubes, Constrained Elastic Surface Nets, MPU Implicits) and mesh postprocessing to intensity and binary data with respect to its application within surgical planning and simulation. The resulting surface meshes are evaluated regarding their smoothness, accuracy and mesh quality. We consider the local curvature, equi-angle skewness, (Hausdorff) distances between two meshes (before and after processing), and volume preservation as measures. We discuss these results concerning their suitability for different applications in the field of surgical planning as well as finite element simulations and make recommendations on how to receive smooth and accurate surface meshes for exemplary cases.

Paper Details

Date Published: 23 February 2010
PDF: 12 pages
Proc. SPIE 7625, Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling, 76252G (23 February 2010); doi: 10.1117/12.844235
Show Author Affiliations
Tobias Moench, Otto-von-Guericke-Univ. Magdeburg (Germany)
Mathias Neugebauer, Otto-von-Guericke-Univ. Magdeburg (Germany)
Peter Hahn, Dornheim Medical Images (Germany)
Bernhard Preim, Otto-von-Guericke-Univ. Magdeburg (Germany)
Dornheim Medical Images (Germany)

Published in SPIE Proceedings Vol. 7625:
Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling
Kenneth H. Wong; Michael I. Miga, Editor(s)

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