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Erschienen in:
2012 | OriginalPaper | Buchkapitel
GPU-Based Visualization of Deformable Volumetric Soft-Tissue for Real-Time Simulation of Haptic Needle Insertion
verfasst von : Dirk Fortmeier, Andre Mastmeyer, Heinz Handels
Erschienen in: Bildverarbeitung für die Medizin 2012
Verlag: Springer Berlin Heidelberg
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Virtual reality simulations can be used for training of surgery procedures such as needle insertion. Using a haptic force-feedback device a realistic virtual environment can be provided by computation of forces for specific patient data. This work presents an algorithm to calculate and visualize deformations of volumetric data representing softtissue inspired by the relaxation step of the ChainMail algorithm. It uses the coupling of haptic force-feedback computation and the deformation visualization algorithm to enhance the visual experience of our needle insertion training simulation. Real-time performance is achieved by implementing the relaxation on the GPU which outperforms a CPU-based implementation.