Jun J Pan1, Jian Chang2, Xiaosong Yang2, Hui Liang3, Jian J Zhang2, Tahseen Qureshi4, Robert Howell5, Tamas Hickish5. 1. State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing, China. 2. National Centre for Computer Animation, Media School, Bournemouth University, Poole, UK. 3. School of Animation, Communication University of China, Beijing, China. 4. Poole Hospital, Poole, UK. 5. The Royal Bournemouth and Christchurch Hospitals, Bournemouth, UK.
Abstract
BACKGROUND: Virtual-reality (VR) based simulation techniques offer an efficient and low cost alternative to conventional surgery training. This article describes a VR training and assessment system in laparoscopic rectum surgery. METHODS: To give a realistic visual performance of interaction between membrane tissue and surgery tools, a generalized cylinder based collision detection and a multi-layer mass-spring model are presented. A dynamic assessment model is also designed for hierarchy training evaluation. RESULTS: With this simulator, trainees can operate on the virtual rectum with both visual and haptic sensation feedback simultaneously. The system also offers surgeons instructions in real time when improper manipulation happens. The simulator has been tested and evaluated by ten subjects. CONCLUSIONS: This prototype system has been verified by colorectal surgeons through a pilot study. They believe the visual performance and the tactile feedback are realistic. It exhibits the potential to effectively improve the surgical skills of trainee surgeons and significantly shorten their learning curve.
BACKGROUND: Virtual-reality (VR) based simulation techniques offer an efficient and low cost alternative to conventional surgery training. This article describes a VR training and assessment system in laparoscopic rectum surgery. METHODS: To give a realistic visual performance of interaction between membrane tissue and surgery tools, a generalized cylinder based collision detection and a multi-layer mass-spring model are presented. A dynamic assessment model is also designed for hierarchy training evaluation. RESULTS: With this simulator, trainees can operate on the virtual rectum with both visual and haptic sensation feedback simultaneously. The system also offers surgeons instructions in real time when improper manipulation happens. The simulator has been tested and evaluated by ten subjects. CONCLUSIONS: This prototype system has been verified by colorectal surgeons through a pilot study. They believe the visual performance and the tactile feedback are realistic. It exhibits the potential to effectively improve the surgical skills of trainee surgeons and significantly shorten their learning curve.
Authors: Jun J Pan; Woojin Ahn; Saurabh Dargar; Tansel Halic; Bai C Li; Ganesh Sankaranarayanan; Kurt Roberts; Steven Schwaitzberg; Suvranu De Journal: J Biomed Inform Date: 2016-03-12 Impact factor: 6.317