Real-time prediction of soft tissue deformation; a non-integer order modeling scheme and a practical verification for the theoretical concept

2021 ◽  
pp. 111633
Author(s):  
S. Sepehr Tabatabaei ◽  
Mohammad Reza Dehghan ◽  
Heidar Ali Talebi
Keyword(s):  
Soft Tissue ◽  
Real Time ◽  
Theoretical Concept ◽  
Tissue Deformation ◽  
Soft Tissue Deformation ◽  
Integer Order ◽  
Time Prediction

scholarly journals GPU-based real-time soft tissue deformation with cutting and haptic feedback

2010 ◽  
Vol 103 (2-3) ◽  
pp. 159-168 ◽  
Author(s):  
Hadrien Courtecuisse ◽  
Hoeryong Jung ◽  
Jérémie Allard ◽  
Christian Duriez ◽  
Doo Yong Lee ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Real Time ◽  
Haptic Feedback ◽  
Tissue Deformation ◽  
Soft Tissue Deformation

Real-Time Interactive Calculation Model of Soft Tissue Deformation with Pull

2012 ◽  
Vol 7 (9) ◽  
pp. 341-348
Author(s):  
Xiaorui Zhang ◽  
Wei Sun ◽  
Ailing Ji ◽  
Silin Chen ◽  
Bangzhen Shen
Keyword(s):  
Soft Tissue ◽  
Real Time ◽  
Calculation Model ◽  
Tissue Deformation ◽  
Soft Tissue Deformation

Interactive Soft Tissue Deformation Simulation Using Physically Based Modeling

2006 ◽  
Author(s):  
Xiaoyi Chi ◽  
Ming C. Leu
Keyword(s):  
Soft Tissue ◽  
Real Time ◽  
Solid Mechanics ◽  
Meshfree Method ◽  
Constitutive Law ◽  
Physically Based Modeling ◽  
Tissue Deformation ◽  
Soft Tissue Deformation ◽  
Point Collocation ◽  
Physically Based

This paper presents a study on physically based modeling and simulation of soft tissue deformation, with the goal of producing realistic, real-time effects during the simulation. We consider soft tissue deformation as a solid mechanics problem with a linear elastic constitutive law. A point collocation based meshfree method is employed to solve the governing equations. To achieve real-time performance, an octree data structure is used to organize the support sets and the nodes to expedite the computation in the meshfree method. The developed system brings together the surface representation for visualization and meshfree modeling for physically based animation to set up a virtual reality environment for soft tissue surgery simulation.

scholarly journals Integrating viscoelastic mass spring dampers into position-based dynamics to simulate soft tissue deformation in real time

2018 ◽  
Vol 5 (2) ◽  
pp. 171587 ◽  
Author(s):  
Lang Xu ◽  
Yuhua Lu ◽  
Qian Liu
Keyword(s):  
Soft Tissue ◽  
Real Time ◽  
Elastic Force ◽  
Virtual Surgery ◽  
Tissue Deformation ◽  
Soft Tissue Deformation ◽  
Spring Force ◽  
Stability And Accuracy ◽  
Mass Spring ◽  
Surgery Simulator

We propose a novel method to simulate soft tissue deformation for virtual surgery applications. The method considers the mechanical properties of soft tissue, such as its viscoelasticity, nonlinearity and incompressibility; its speed, stability and accuracy also meet the requirements for a surgery simulator. Modifying the traditional equation for mass spring dampers (MSD) introduces nonlinearity and viscoelasticity into the calculation of elastic force. Then, the elastic force is used in the constraint projection step for naturally reducing constraint potential. The node position is enforced by the combined spring force and constraint conservative force through Newton's second law. We conduct a comparison study of conventional MSD and position-based dynamics for our new integrating method. Our approach enables stable, fast and large step simulation by freely controlling visual effects based on nonlinearity, viscoelasticity and incompressibility. We implement a laparoscopic cholecystectomy simulator to demonstrate the practicality of our method, in which liver and gallbladder deformation can be simulated in real time. Our method is an appropriate choice for the development of real-time virtual surgery applications.

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