In order to improve the accuracy of simulation in the case of large deformation of tissue, we developed a total Lagrange finite element tissue deformation simulate method and update Lagrange finite element tissue deformation simulate method.

1、

In addition, the soft tissue is divided as deformation area and un-deformation area, and the calculation is only executed in deformation area, which reduces the calculation scale.

其次，将软体组织分为形变区域和非形变区域，仅对形变区域的部分进行形变计算，减少了计算规模。

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Experimental results show that the new method can be used in real-time simulation of soft tissue with large deformation.

实验结果表明，该模型适合于软组织大形变的实时仿真。

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Methods By referring to the computerized tomography pictures of the human body and using plane strain and finite element method ( FEM), we applied plane strain hypothesis to establish a model for calculation of the brain tissue deformation caused by rotational inertia loading during vehicle crash accident.

方法参照人体CT图片，利用平面应变假设建立模型，采用有限元法仿真计算旋转惯性载荷作用下脑组织的变形。

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This method can reduce computational time, improve the efficiency of soft tissue deformation and maximal meet the requirement of real-time. A good virtual surgery simulation system must meet the requirements in vision and sense of touch at the same time.

良好的虚拟手术仿真系统必须同时满足视觉和触觉感官的要求。

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Regarding the facial soft tissue deformation problem in simulation of plastic surgery, this paper propose a simplified method of human facial modeling using geometric finite elements which is based on cylinder projection.

针对模拟整形手术中面部软组织变形问题，本文提出一种简化的基于柱面投影的几何有限元建模方法。

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This system can emulate two basic bone fracture surgeries and predict the soft tissue deformation after operation. In addition, it has the self-learning function.

该系统能针对两种基本的截骨手术进行模拟和手术后软组织形变预测，并具有自学习功能。

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Objective To establish the plane strain model of brain tissues on mid-sagittal plane and discuss the relation between the brain tissue deformation and brain injury.

目的建立人体正中矢状平面头部组织的平面应变模型，探讨脑组织变形与大脑损伤间的关系。

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Soft tissue deformation is divided into three parts, the first, deformation pretreatment, and second deformation calculation, third, deformation mapping results.

软组织形变可分为三大部分，一是形变前期处理，二是形变计算，三是形变结果绘制。

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A quasi-static finite element approach is presented to simulate soft tissue deformation during robot-assisted needle insertion with satisfactory precision.

为了提高机器人辅助针穿刺精度，提出一种对软组织变形分析的准静态有限元法。

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How to precisely predict soft tissue deformation before the surgery is the subject that clinicians are concerning all these years along.

如何准确地预测术后的颜面软组织形态变化一直是临床医生关心和研究的课题之一。

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Recent situation of 3-d finite element simulation study on facial soft tissue deformation before and after orthognathic surgery

正颌手术前后颜面软组织变形的三维有限元仿真研究近况

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For the simulation of tissue deformation, this paper gives the visco-elastic finite element tissue deformation simulate method.

在软组织形变仿真方面，本文提出了粘弹性有限元组织形变仿真算法。

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Finally, this article describes the design of force feedback experiment which tests force feedback with soft tissue deformation.

最后设计力反馈实验，验证变形过程中的力反馈。

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A mass-spring model for modeling soft tissue deformation is adopted to simulate the dynamic environment.

我们用弹簧质点法建立了软组织变形的一个模型来模拟手术针穿刺过程中组织的变形情况。

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Study on Modeling of Acupuncture Force Feedback and Tissue Deformation Based on the 3D TCM Visible Human

基于数字人体的针灸触觉反馈和组织形变研究

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Brain Tissue Deformation Considering 3-D Multiphase and Nonlinear Features

三维多相头部脑组织形变特性仿真

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Simulating calculation of passenger brain tissue deformation during vehicle crash accident using finite element method

碰撞事故中乘员头部组织形变有限元仿真计算

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A Soft Tissue Deformation Model for Web-Based Virtual Dissection

应用于网上虚拟解剖的软组织变形模型

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Therefore, it is necessary to predict soft tissue deformation accurately.

因此，对软组织形态变化进行逼真的预测是非常有必要的。

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A Non-linear Deformable Model for Simulation of Real-Time Soft Tissue Deformation

软组织形变实时仿真的非线性模型

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