GPU Accelerated Surgical Simulators for Complex Morphology
VR '05 Proceedings of the 2005 IEEE Conference 2005 on Virtual Reality
A Virtual Environment Testbed for Training Laparoscopic Surgical Skills
Presence: Teleoperators and Virtual Environments
Learning Blood Management in Orthopedic Surgery through Gameplay
IEEE Computer Graphics and Applications
Fast prototyping of virtual reality based surgical simulators with PhysX-enabled GPU
Transactions on edutainment IV
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A challenge in virtual reality based laparoscopic cholecystectomy simulation is to construct a fast and accurate deformable gallbladder model. This paper proposed a multi-layered mass-spring model which can adapt well to the built-in accelerating algorithms in PhysX-Engine of Graphics Processing Unit (GPU). The gallbladder was first segmented from clinical Computed Tomography (CT) images. From the segmentation result, a surface mesh of a gallbladder was constructed. The inner layers of a mass-spring model were generated from the surface mesh based on the anatomical structure of gallbladder. We configured the parameters of the springs based on the biomechanical properties of gallbladder to ensure the reality of the deformation results. Preliminary experiments demonstrated that our model was able to achieve satisfactory results in terms of both visual perception and time performance.