摘要
电视胸腔镜(VATS, Video-assisted thoracoscopic surgery)肺叶切除术仿真系统对外科医生手术培训及规划具有重要价值。为实现高保真电视胸腔镜肺叶切除术的模拟,设计了一套有效模拟VATS手术过程中不同手术操作的肺叶切除术模拟器。采用基于位置的动力学仿真框架实现了手术器械-软组织和软组织间交互作用、软组织切割以及手术缝合操作引起的变形模拟;并采用了Marching Cubes算法对模型进行面绘制,尤其是切割操作的渲染;使用GPU并行计算的方法加速手术模拟和面绘制。实验结果表明,本文方法可实现高保真、稳定、高效的VATS手术仿真效果。
The virtual reality simulator of the video-assisted thoracoscopic(VATS) surgery lobectomy is of great value to the surgeon’s surgical training and planning. In order to simulate the high-fidelity video-assisted thoracoscopic lobectomy, a VATS lobectomy simulator to realistically and efficiently simulate the different surgical operations during the VATS lobectomy procedure is developed. Based on the Position-Based Dynamics framework, the deformation induced by tool-tissue and tissue-tissue interactions, soft tissue cuts as well as subsequent surgical suture operations is simulated. The Marching Cubes algorithm is employed to achieve the surface rendering, especially for the cutting process. The GPU parallel computing technique is employed to accelerate the surgical simulation and surface rendering. The experimental results show that the proposed method can achieve high fidelity, stable and efficient VATS surgery simulation results.
作者
彭柳
司伟鑫
郑睿
廖祥云
徐东亮
王平安
Peng Liu;Si Weixin;Zheng Rui;Liao Xiangyun;Xu Dongliang;Wang Ping’an(Wuhan University of Technology,Wuhan 430070,China;Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China;The Chinese University of Hong Kong,Hong Kong 999077,China)
出处
《系统仿真学报》
CAS
CSCD
北大核心
2020年第5期826-836,共11页
Journal of System Simulation
基金
国家自然科学基金(61802385),深圳市虚拟现实与人机交互重点实验室基金(ZDSYS201605101739178),深圳市科技计划基础研究项目(JCYJ20170413162256793)。
