17 March 2008 Interactive modeling and simulation of peripheral nerve cords in virtual environments
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Abstract
This paper contributes to modeling, simulation and visualization of peripheral nerve cords. Until now, only sparse datasets of nerve cords can be found. In addition, this data has not yet been used in simulators, because it is only static. To build up a more flexible anatomical structure of peripheral nerve cords, we propose a hierarchical tree data structure where each node represents a nerve branch. The shape of the nerve segments itself is approximated by spline curves. Interactive modeling allows for the creation and editing of control points which are used for branching nerve sections, calculating spline curves and editing spline representations via cross sections. Furthermore, the control points can be attached to different anatomic structures. Through this approach, nerve cords deform in accordance to the movement of the connected structures, e.g., muscles or bones. As a result, we have developed an intuitive modeling system that runs on desktop computers and in immersive environments. It allows anatomical experts to create movable peripheral nerve cords for articulated virtual humanoids. Direct feedback of changes induced by movement or deformation is achieved by visualization in real-time. The techniques and the resulting data are already used for medical simulators.
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Sebastian Ullrich, Sebastian Ullrich, Thorsten Frommen, Thorsten Frommen, Jan Eckert, Jan Eckert, Astrid Schütz, Astrid Schütz, Wei Liao, Wei Liao, Thomas M. Deserno, Thomas M. Deserno, Alexandre Ntouba, Alexandre Ntouba, Rolf Rossaint, Rolf Rossaint, Andreas Prescher, Andreas Prescher, Torsten Kuhlen, Torsten Kuhlen, } "Interactive modeling and simulation of peripheral nerve cords in virtual environments", Proc. SPIE 6918, Medical Imaging 2008: Visualization, Image-Guided Procedures, and Modeling, 69182J (17 March 2008); doi: 10.1117/12.770354; https://doi.org/10.1117/12.770354
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