Real-Time Deformation Simulation of Kidney Surgery Based on Virtual Reality

被引：1

作者：

Jing M. ^{[1
]}

Cui Z. ^{[1
]}

Fu H. ^{[1
]}

Chen X. ^{[1
,2
]}

机构：

[1] Institute of Biomedical Manufacturing and Life Quality Engineering, State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai

[2] Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai

来源：

Journal of Shanghai Jiaotong University (Science) | 2021年 / 26卷 / 03期

基金：

中国国家自然科学基金;

关键词：

A; computer-assisted surgery; corotation FEM; finite element method (FEM); R; 318; real-time simulation; TP; 391; virtual reality;

D O I：

10.1007/s12204-021-2295-3

中图分类号：

学科分类号：

摘要：

Virtual reality-based surgery simulation is becoming popular with the development of minimally invasive abdominal surgery, where deformable soft tissue is modelled and simulated. The mass-spring model (MSM) and finite element method (FEM) are common methods used in the simulation of soft tissue deformation. However, MSM has an issue concerning accuracy, while FEM has a problem with efficiency. To achieve higher accuracy and efficiency at the same time, we applied a co-rotational FEM in the simulation of a kidney with a tumour inside, achieving a real-time and accurate deformation simulation. In addition, we set a multi-model representation for mechanical simulation and visual rendering. The implicit Euler method and conjugate gradient method were adopted for setting and solving the linear system. For a realistic simulation of surgery, constraints outside the kidney and between the kidney and tumour were set with two series of mechanical properties for the two models. Experiments were conducted to validate the accuracy and real-time performance. © 2021, Shanghai Jiao Tong University and Springer-Verlag GmbH Germany, part of Springer Nature.

引用

页码：290 / 297

页数：7

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