Filters








1,167 Hits in 6.3 sec

A Systematic Review of Real-Time Medical Simulations with Soft-Tissue Deformation: Computational Approaches, Interaction Devices, System Architectures, and Clinical Validations

Tan-Nhu Nguyen, Marie-Christine Ho Ba Tho, Tien-Tuan Dao
2020 Applied Bionics and Biomechanics  
By clearly analysing advantages and drawbacks in each system development aspect, this review can be used as a reference guideline for developing systems of soft-tissue simulations.  ...  Simulating deformations of soft tissues is a complex engineering task, and it is even more difficult when facing the constraint between computation speed and system accuracy.  ...  We acknowledged also the Région Hauts-de-France for funding.  ... 
doi:10.1155/2020/5039329 pmid:32148560 pmcid:PMC7053477 fatcat:onymbdiovrb7df5h77xbrrd45q

A Physics-Driven Neural Networks-Based Simulation System (PhyNNeSS) for Multimodal Interactive Virtual Environments Involving Nonlinear Deformable Objects

Suvranu De, Dhannanjay Deo, Ganesh Sankaranarayanan, Venkata S. Arikatla
2011 Presence - Teleoperators and Virtual Environments  
Background-While an update rate of 30 Hz is considered adequate for real time graphics, a much higher update rate of about 1 kHz is necessary for haptics.  ...  We show, through careful error analysis, that the scheme is scalable, with the accuracy being controlled by the number of neurons used in the simulation.  ...  This makes PhyNNeSS ideal for implementing on single instruction multiple data (SIMD) architectures available on current nowadays graphical processing units.  ... 
doi:10.1162/pres_a_00054 pmid:22629108 pmcid:PMC3357955 fatcat:ewe4u64m3fc6rax36ywe7ukwfq

Deformable Models for Surgical Simulation: A Survey

Jinao Zhang, Yongmin Zhong, Chengfan Gu
2018 IEEE Reviews in Biomedical Engineering  
This paper presents a survey of the state-of-the-art deformable models studied in the literature concerning soft tissue deformable modeling for interactive surgical simulation.  ...  Finally, various issues in the existing deformable models are discussed to outline the remaining challenges of deformable models in surgical simulation.  ...  It will also revolutionize the discipline of surgical simulation from pure modeling and analysis of surgical processes to the utilization for steering, guidance and control of practical surgical processes  ... 
doi:10.1109/rbme.2017.2773521 pmid:29990129 fatcat:r25zpt3vfvdrlhcypxvah6kopi

Physically Realistic Virtual Surgery Using the Point-Associated Finite Field (PAFF) Approach

Suvranu De, Yi-Je Lim, Muniyandi Manivannan, Mandayam A Srinivasan
2006 Presence - Teleoperators and Virtual Environments  
The accuracy and efficiency of this technique is compared with solutions using traditional finite element methods and simulation results are reported on segmented models obtained from the Visible Human  ...  The generation of multimodal virtual environments for surgical training is complicated by the necessity to develop heterogeneous simulation scenarios such as surgical incision, cauterization, bleeding,  ...  Acknowledgments The authors would like to thank Professor George Xu of RPI for providing the segmented VIP-Man models obtained from the Visible Human Project dataset.  ... 
doi:10.1162/pres.15.3.294 fatcat:jtfj6k3rsrfhpiodzox4v2tmfa

A Study of Speed of the Boundary Element Method as applied to the Realtime Computational Simulation of Biological Organs [article]

Kirana Kumara P
2014 arXiv   pre-print
First, a Graphics Processing Unit (GPU) is used to speed up the BEM computations to achieve the realtime performance. Next, instead of the GPU, a computer cluster is used.  ...  In this work, possibility of simulating biological organs in realtime using the Boundary Element Method (BEM) is investigated.  ...  access to a Graphics Processing Unit (GPU).  ... 
arXiv:1311.4533v3 fatcat:fcozs6w2lrgtzeuwl6nrosn56y

A Study of Speed of the Boundary Element Method as applied to the Realtime Computational Simulation of Biological Organs

Kirana Kumara P
2014 Electronic Journal of Boundary Elements  
First, a Graphics Processing Unit (GPU) is used to speed up the BEM computations to achieve the realtime performance. Next, instead of the GPU, a computer cluster is used.  ...  In this work, possibility of simulating biological organs in realtime using the Boundary Element Method (BEM) is investigated.  ...  access to a Graphics Processing Unit (GPU).  ... 
doi:10.14713/ejbe.v12i2.1841 fatcat:caye26k53zcmlosbiuqysmur7a

Haptic rendering - beyond visual computing - Haptics in minimally invasive surgical simulation and training

C. Basdogan, S. De Rensselaer, Jung Kim, M. Muniyandi, Hyun Kim, M.A. Srinivasan
2004 IEEE Computer Graphics and Applications  
, Surgical Science, Mentice, and Reachin Technologies, for example).  ...  M inimally invasive surgery has revolutionized many surgical procedures over the last few decades. MIS is performed using a small video camera, a video display, and a few customized surgical tools.  ...  We thank the anonymous reviewers for their insightful comments that helped us improve the article's quality.  ... 
doi:10.1109/mcg.2004.1274062 pmid:15387229 fatcat:2ntogdb7hfgk3e3pzznajk2roa

Modelling of soft tissue deformation for laparoscopic surgery simulation [chapter]

G. Székely, Ch. Brechbühler, R. Hutter, A. Rhomberg, P. Schmid
1998 Lecture Notes in Computer Science  
The goal of the present work is to develop a framework for the full-scale, real-time, Finite Element simulation of elastic tissue deformation in complex systems such as the human abdomen.  ...  While the graphical performance of commercial systems already makes PCbased simulators viable, the real-time simulation of soft tissue deformation is still the major obstacle in developing simulators for  ...  Algorithmic design as described in Section 4 below allows to scale the computation to the necessary speed with the selection of an appropriate number of processor units or processing elements (PE).  ... 
doi:10.1007/bfb0056240 fatcat:rerxka2nrbhi7m67w2qmgv2efu

The point collocation-based method of finite spheres (PCMFS) for real time surgery simulation

Suvranu De, Jung Kim, Yi-Je Lim, Mandayam A. Srinivasan
2005 Computers & structures  
Simulations using realistic three-dimensional geometries are presented and are compared with solutions using more traditional finite element methods in terms of speed and accuracy.  ...  The demand for extreme computational efficiency delimits the complexity of the computational models that can be used for simulation.  ...  Stylopoulous of Massachusetts General Hospital (Harvard Medical School) for help in performing the animal experiments. Parts of this project were carried out at MIT, RPI and MGH.  ... 
doi:10.1016/j.compstruc.2004.12.003 fatcat:oqobxd7vdfahnpq4mj5tteiz3y

Towards real-time finite-strain anisotropic thermo-visco-elastodynamic analysis of soft tissues for thermal ablative therapy [article]

Jinao Zhang, Remi Jacob Lay, Stuart K. Roberts, Sunita Chauhan
2020 arXiv   pre-print
It also provides high computational speeds for computer-assisted treatment systems towards enabling the operator to simulate thermal ablation accurately and visualise tissue temperatures and ablation zones  ...  We also demonstrate the translational benefits of the presented method for clinical applications using a simulation of thermal ablation in the liver.  ...  To address the above issues, we develop a thermo-visco-hyperelastic total Lagrangian explicit dynamics finite element algorithm and utilise Graphics Processing Unit (GPU) acceleration for real-time finite-strain  ... 
arXiv:2009.10400v1 fatcat:s7fcyzysr5gazg6z2girx5hqfa

A physics-based algorithm for real-time simulation of electrosurgery procedures in minimally invasive surgery

Zhonghua Lu, Venkata S. Arikatla, Zhongqing Han, Brian F. Allen, Suvranu De
2013 International Journal of Medical Robotics and Computer Assisted Surgery  
Background-High-frequency electricity is used in a majority of surgical interventions.  ...  To provide sub-finite-element graphical rendering of vaporized tissue, a dual mesh dynamic triangulation algorithm based on isotherms is proposed.  ...  Our approach is based on a finite-element electrothermo-elastic analysis of the biological tissue.  ... 
doi:10.1002/rcs.1561 pmid:24357156 pmcid:PMC4063934 fatcat:txur4ia4zrgf5gh6kv6yfexcty

Real-Time Finite-Element Simulation of Linear Viscoelastic Tissue Behavior Based on Experimental Data

Mert Sedef, Evren Samur, Cagatay Basdogan
2006 IEEE Computer Graphics and Applications  
Researchers have used both linear and nonlinear finite-element methods (FEMs) to develop realtime organ-force models. 1,2 Achieving a computationally fast and stable simulation is possible using a linear  ...  Work in Finite-Element Simulation" sidebar).  ...  Researchers have used both linear and nonlinear finite-element methods (FEMs) to develop realtime organ-force models. 1,2 Achieving a computationally fast and stable simulation is possible using a linear  ... 
doi:10.1109/mcg.2006.135 pmid:17120914 fatcat:77rnmmdyofgnrkqd67bsioov5m

POD for Real-Time Simulation of Hyperelastic Soft Biological Tissue Using the Point Collocation Method of Finite Spheres

Suleiman Banihani, Timon Rabczuk, Thakir Almomani
2013 Mathematical Problems in Engineering  
Since computational speed has a significant role in simulation of surgical procedures, the proposed technique was able to model realistic nonlinear behavior of organs in real time.  ...  The point collocation method of finite spheres (PCMFS) is used to model the hyperelastic response of soft biological tissue in real time within the framework of virtual surgery simulation.  ...  In [29] , a graphics processing unit (GPU) was utilized in applying this approach combined with Prony series to model viscoelasticity, reaching real-time speed.  ... 
doi:10.1155/2013/386501 fatcat:w6spwa2yzveexi6a2rqay5z7yy

A Bernstein-Bezier Based Approach to Soft Tissue Simulation

S.H. Roth, Markus H. Gross, Silvio Turello, Friedrich R. Carls
1998 Computer graphics forum (Print)  
This paper discusses a Finite Element approach for volumetric soft tissue modeling in the context of facial surgery simulation.  ...  In addition, the use of tetrahedral Finite Elements does not put any restriction on the geometry of the simulated volumes.  ...  Acknowledgement The authors would like to thank Christoph Zehnder for implementing parts of the system.  ... 
doi:10.1111/1467-8659.00275 fatcat:wdn6r5k66bfx5k3ssbuxowd2ii

Real-time nonlinear finite element computations on GPU – Application to neurosurgical simulation

Grand Roman Joldes, Adam Wittek, Karol Miller
2010 Computer Methods in Applied Mechanics and Engineering  
Application of biomechanical modeling techniques in the area of medical image analysis and surgical simulation implies two conflicting requirements: accurate results and high solution speeds.  ...  In our previous papers we have presented algorithms and solution methods for performing accurate nonlinear finite element analysis of brain shift (which includes mixed mesh, different non-linear material  ...  In the past years there has been an increased interest in using the power of graphics processing units (GPUs), with their parallel architecture, for general purpose computations.  ... 
doi:10.1016/j.cma.2010.06.037 pmid:21179562 pmcid:PMC3003932 fatcat:mpfcgke65famnggxgfksjkisra
« Previous Showing results 1 — 15 out of 1,167 results