Real-time VR Simulation of Laparoscopic Cholecystectomy based on Parallel Position-based Dynamics in GPU
In recent years, virtual reality (VR) based training has greatly changed surgeons learning mode. It can simulate the surgery from the visual, auditory, and tactile aspects. VR medical simulator can greatly reduce the risk of the real patient and the cost of hospitals. Laparoscopic cholecystectomy is...
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| Vydáno v: | Proceedings (IEEE Conference on Virtual Reality and 3D User Interfaces. Online) s. 548 - 556 |
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IEEE
01.03.2020
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| ISSN: | 2642-5254 |
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| Abstract | In recent years, virtual reality (VR) based training has greatly changed surgeons learning mode. It can simulate the surgery from the visual, auditory, and tactile aspects. VR medical simulator can greatly reduce the risk of the real patient and the cost of hospitals. Laparoscopic cholecystectomy is one of the typical representatives in minimal invasive surgery (MIS). Due to the large incidence of cholecystectomy, the application of its VR-based simulation is vital and necessary for the residents' surgical training. In this paper, we present a VR simulation framework based on position-based dynamics (PBD) for cholecystectomy. To further accelerate the deformation of organs, PBD constraints are solved in parallel by a graph coloring algorithm. We introduce a bio-thermal conduction model to improve the realism of the fat tissue electrocautery. Finally, we design a hybrid multi-model connection method to handle the interaction and simulation of the liver-gallbladder separation. This simulation system has been applied to laparoscopic cholecystectomy training in several hospitals. From the experimental results, users can operate in real-time with high stability and fidelity. The simulator is also evaluated by a number of digestive surgeons through preliminary studies. They believed that the system can offer great help to the improvement of surgical skills. |
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| AbstractList | In recent years, virtual reality (VR) based training has greatly changed surgeons learning mode. It can simulate the surgery from the visual, auditory, and tactile aspects. VR medical simulator can greatly reduce the risk of the real patient and the cost of hospitals. Laparoscopic cholecystectomy is one of the typical representatives in minimal invasive surgery (MIS). Due to the large incidence of cholecystectomy, the application of its VR-based simulation is vital and necessary for the residents' surgical training. In this paper, we present a VR simulation framework based on position-based dynamics (PBD) for cholecystectomy. To further accelerate the deformation of organs, PBD constraints are solved in parallel by a graph coloring algorithm. We introduce a bio-thermal conduction model to improve the realism of the fat tissue electrocautery. Finally, we design a hybrid multi-model connection method to handle the interaction and simulation of the liver-gallbladder separation. This simulation system has been applied to laparoscopic cholecystectomy training in several hospitals. From the experimental results, users can operate in real-time with high stability and fidelity. The simulator is also evaluated by a number of digestive surgeons through preliminary studies. They believed that the system can offer great help to the improvement of surgical skills. |
| Author | Shen, Yang Qin, Hong Zhang, Leiyu Yu, Peng Wang, Haipeng Pan, Junjun Hao, Haimin |
| Author_xml | – sequence: 1 givenname: Junjun surname: Pan fullname: Pan, Junjun organization: Beihang University Peng Cheng Lab,State Key Lab of VR Tech & Syst – sequence: 2 givenname: Leiyu surname: Zhang fullname: Zhang, Leiyu organization: Beihang University,State Key Lab of VR Tech & Syst – sequence: 3 givenname: Peng surname: Yu fullname: Yu, Peng organization: Beihang University,State Key Lab of VR Tech & Syst – sequence: 4 givenname: Yang surname: Shen fullname: Shen, Yang organization: Beijing Normal University,Faculty of Education – sequence: 5 givenname: Haipeng surname: Wang fullname: Wang, Haipeng organization: Beijing Aerospace General Hospital – sequence: 6 givenname: Haimin surname: Hao fullname: Hao, Haimin organization: Beihang University,Peng Cheng Lab – sequence: 7 givenname: Hong surname: Qin fullname: Qin, Hong organization: Stony Brook University,Department of Computer Science |
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| Snippet | In recent years, virtual reality (VR) based training has greatly changed surgeons learning mode. It can simulate the surgery from the visual, auditory, and... |
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| Title | Real-time VR Simulation of Laparoscopic Cholecystectomy based on Parallel Position-based Dynamics in GPU |
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