861 Hits in 6.4 sec

A hybrid elastic model for real-time cutting, deformations, and force feedback for surgery training and simulation

Stéphane Cotin, Hervé Delingette, Nicholas Ayache
2000 The Visual Computer  
è Ô ã ê ÿ å í ae } ô è Ô é » ë ñ ç 1 è í å Ô ë ñ ò · î ü } þ » ó ñ ò q è í ë ae X î R þ m ç © ë ø î » ü õ è Ô inria-00615105, version 1 -17 Aug 2011 Tensor-Mass Model User Interaction Forces Displacements  ...  Displacements Forces inria-00615105, version 1 -17 Aug 2011  ...  Forces At Connection Nodes Displacements User Interaction Precomputed Linear Elastic Model  ... 
doi:10.1007/pl00007215 fatcat:gsxyzybb5vandh32wnhdccucta

A hybrid elastic model allowing real-time cutting, deformations and force-feedback for surgery training and simulation

H. Delingette, S. Cotin, N. Ayache
Proceedings Computer Animation 1999  
z ý 1 ë ø ó ó S ê » ã 7 ÿ ae } å í ô ¡ â i ã å í ã ä å Ô ã ç © ã 3 î X è è í é » ë ø ç a ê ã 7 ÿ ae X å Ô ô Ð ò q è í ë ae X î ¡ è í é » ã h ê ë ì E ã 3 å Ô ã 3 î ð 7 ã ö E ã 7 è ý W ã ã 3 î è í é » ã  ...  í ë ae X î x ä å Ô ë ø î ð 7 ë ø ä » ó ø ã ¡ â i ã a ü } ë ¥ ã é » ã å í ã 1 ae } î ó ï ò ¥ ã å í ï h ü X ã î » ã 3 å í ò } ó m ê ã ç Ô ð å Ô ë ø ä è í ë ae X î Ð ae · ÿ z è Ô é ã A ô õ ã 7 è í é » ae  ...  At Connection Nodes Forces At Connection Nodes Displacements User Interaction Precomputed Linear Elastic Model  ... 
doi:10.1109/ca.1999.781200 dblp:conf/ca/DelingetteCA99 fatcat:mzz3dibpovd6voj2fhi7a4xzby

Graphic and haptic simulation system for virtual laparoscopic rectum surgery

Jun J. Pan, Jian Chang, Xiaosong Yang, Jian J. Zhang, Tahseen Qureshi, Robert Howell, Tamas Hickish
2011 International Journal of Medical Robotics and Computer Assisted Surgery  
Finally, a real-time cutting technique based on mesh is employed to represent the incision operation.  ...  Medical simulators with vision and haptic feedback techniques offer a cost-effective and efficient alternative to the traditional medical trainings.  ...  The research in this paper was supported by a grant from the Royal Bournemouth and Christchurch Hospitals NHS Trust and The Higher Education Innovation Fund (HEIF) grant from Bournemouth University.  ... 
doi:10.1002/rcs.399 pmid:21563287 fatcat:de6hdubgj5bv5cfgf7tolfhhsu

Toward a Digital Twin for Arthroscopic Knee Surgery: A Systematic Review

Oystein Bjelland, Bismi Rasheed, Hans Georg Schaathun, Morten D. Pedersen, Martin Steinert, Alf Inge Hellevik, Robin T. Bye
2022 IEEE Access  
In arthroscopic surgery education, the paradigm shift from apprenticeship to simulation training has driven the need for better simulators, and the current focus is on improving simulators with respect  ...  , and a database of virtual surgeries.  ...  dynamic, deformable object, cutting, or material removal simulations, paired with a real-time visual feedback of 30 Hz.  ... 
doi:10.1109/access.2022.3170108 fatcat:m4j42uybibhu5iorfepxyetfze

NOViSE: a virtual natural orifice transluminal endoscopic surgery simulator

Przemyslaw Korzeniowski, Alastair Barrow, Mikael H. Sodergren, Niels Hald, Fernando Bello
2016 International Journal of Computer Assisted Radiology and Surgery  
Methods We developed NOViSE-the first force-feedbackenabled virtual reality simulator for NOTES training supporting a flexible endoscope.  ...  Results We present the application of NOViSE to the simulation of a hybrid trans-gastric cholecystectomy procedure.  ...  Korzeniowski, A. Barrow, M. H. Sodergren and N. Hald declare that there is no conflict of interest. Dr.  ... 
doi:10.1007/s11548-016-1401-8 pmid:27314591 pmcid:PMC5110615 fatcat:u5dhaf7s5nds3phyqpkaosoah4

Volumetric object modeling for surgical simulation

Sarah Gibson, Christina Fyock, Eric Grimson, Takeo Kanade, Ron Kikinis, Hugh Lauer, Neil McKenzie, Andrew Mor, Shin Nakajima, Hide Ohkami, Randy Osborne, Joseph Samosky (+1 others)
1998 Medical Image Analysis  
An initial prototype for simulating arthroscopic knee surgery is described which uses volumetric models of the knee derived from 3-D magnetic resonance imaging, visual feedback via real-time volume and  ...  polygon rendering, and haptic feedback provided by a force-feedback device.  ...  We thank Edward Gibson and three anonymous reviewers of this paper for many helpful and insightful comments and suggestions.  ... 
doi:10.1016/s1361-8415(98)80007-8 pmid:10646758 fatcat:q46ko2swmbbv3o5s3l7wxp4yea

Modeling of Tool-Tissue Interactions for Computer-Based Surgical Simulation: A Literature Review

Sarthak Misra, K. T. Ramesh, Allison M. Okamura
2008 Presence - Teleoperators and Virtual Environments  
Surgical simulators present a safe and potentially effective method for surgical training, and can also be used in robot-assisted surgery for pre-and intra-operative planning.  ...  Overcoming such obstacles will not only help us to model tool-tissue interactions in real time, but also enable realistic force feedback to the user during surgical simulation.  ...  Desai (University of Maryland) and Dr. Amy E. Kerdok (Harvard University) for their helpful suggestions and comments.  ... 
doi:10.1162/pres.17.5.463 pmid:20119508 pmcid:PMC2813063 fatcat:z6sv5cmf5zfa7c2p3ly7ixmz24

A Constitutive Model of Soft Tissue Deformation for Virtual Surgical Simulation: A Literature Review

2018 DEStech Transactions on Engineering and Technology Research  
As a consequence, the constitutive model is crucial for modeling soft tissue deformation.  ...  The contribution of this paper is to provide theoretical guidance for the simulation of soft tissue deformation in the virtual surgery simulation system and to supply various practical suggestions for  ...  Deformable human soft tissue simulation with real-time and accuracy requirements in virtual surgery is needing to find a precise and effective constitutive model.  ... 
doi:10.12783/dtetr/pmsms2018/24905 fatcat:f4e736e2ubgfriszfddxgcddkq

Hepatic surgery simulation

Herve Delingette, Nicholas Ayache
2005 Communications of the ACM  
Once surgery planning is completed, surgery simulation attempts to reproduce the surgical gestures with enough realism to allow for efficient training. Geometric Modeling.  ...  Physical Modeling. Modeling the deformable nature of biomaterials is extremely computationally expensive, which makes this task the most critical one to reach real-time performances.  ... 
doi:10.1145/1042091.1042116 fatcat:5svptmbnqvh4faw6wsgb7wknki

Simulation of elastic tissues in virtual medicine using neuro-fuzzy systems

Arne Radetzky, Andreas Nuernberger, Dietrich P. Pretschner, Yongmin Kim, Seong K. Mun
1998 Medical Imaging 1998: Image Display  
In this paper, we present a hybrid neuro-fuzzy system, which was designed for the description and simulation of tissues.  ...  It is also necessary to simulate the deformation and resulting inner forces of tissue under influence of external forces caused by, for example, medical instruments or gravity.  ...  On the one hand, force feedback devices for virtual laparoscopy already exists and on the other hand, keyhole surgery requires much more training as conventional surgery.  ... 
doi:10.1117/12.312516 fatcat:5wq6mfkbijb5bai6hlmm5gr7am

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  
The present review paper provides useful information to characterize how real-time medical simulation systems with soft-tissue deformations have been developed.  ...  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.  ...  Acknowledgments This work was carried out and funded in the framework of the Labex MS2T.  ... 
doi:10.1155/2020/5039329 pmid:32148560 pmcid:PMC7053477 fatcat:onymbdiovrb7df5h77xbrrd45q

Real-time dissection of organs via hybrid coupling of geometric metaballs and physics-centric mesh-free method

Junjun Pan, Shizeng Yan, Hong Qin, Aimin Hao
2016 The Visual Computer  
For organ geometry, we employ a novel hybrid model comprising both inner metaballs and high-resolution surface mesh with texture information.  ...  This hybrid dissection technique has already been integrated into a VR-based laparoscopic surgery simulator with a haptic interface.  ...  . a-c Our cutting simulation results at different stages, d result in Model Number of vertices Number of spheres Time for metaballs construction (s) Time for deformation (ms) Time for cutting  ... 
doi:10.1007/s00371-016-1317-x fatcat:z46dqkpobvgo7pfkfbjywrczby

Virtual reality training and assessment in laparoscopic rectum surgery

Jun J. Pan, Jian Chang, Xiaosong Yang, Hui Liang, Jian J. Zhang, Tahseen Qureshi, Robert Howell, Tamas Hickish
2014 International Journal of Medical Robotics and Computer Assisted Surgery  
A dynamic assessment model is also designed for the hierarchy training evaluation.  ...  This article describes a VR training and assessment system in laparoscopic rectum surgery.  ...  Acknowledgements The research in this article was supported by a grant from the Royal Bournemouth and Christchurch Hospitals NHS Trust and a HEIF grant from Bournemouth University.  ... 
doi:10.1002/rcs.1582 pmid:24700686 fatcat:nzvufggl7ja3pkdvzmuninae2e

A virtual surgical training system that simulates cutting of soft tissue using a modified pre-computed elastic model

Kyaw Kyar Toe, Weimin Huang, Tao Yang, Yuping Duan, Jiayin Zhou, Yi Su, Soo-Kng Teo, Selvaraj Senthil Kumar, Calvin Chi-Wan Lim, Chee Kong Chui, Stephen Chang
2015 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)  
This work presents a surgical training system that incorporates cutting operation of soft tissue simulated based on a modified pre-computed linear elastic model in the Simulation Open Framework Architecture  ...  A precomputed linear elastic model used for the simulation of soft tissue deformation involves computing the compliance matrix a priori based on the topological information of the mesh.  ...  ACKNOWLEDGMENT This work is partially supported by research grant BEP 102 148 0009, Image-guided Robotic Assisted Surgical Training from the Agency for Science, Technology and Research, Singapore.  ... 
doi:10.1109/embc.2015.7319195 pmid:26737095 dblp:conf/embc/ToeHYDZSTSLCC15 fatcat:dn57udofsvbqnd4kvydm7pvlhy

Soft Tissue Modeling for Surgery Simulation [chapter]

Hervé Delingette, Nicholas Ayache
2004 Handbook of Numerical Analysis  
We also wish to thank Clément Forest and Jean-Christophe Lombardo for their numerous contributions on force-feedback rendering, collision detection as well as mesh data structure.  ...  Stéphane Cotin developped the precomputed linear elastic model of section 5 as well as a rst version of the Tensor-Mass model described in section 6.1.  ...  display, the computation time for collision detection, force feedback and deformation.  ... 
doi:10.1016/s1570-8659(03)12005-4 fatcat:ezfsuftbvzfcvgyshazjowhr3u
« Previous Showing results 1 — 15 out of 861 results