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Author: Publisher: ISBN: Category : Languages : en Pages : 94
Book Description
This thesis involves the initial phase of development of a virtual-reality based Robotic Surgery Simulator (RoSS) for the da Vinci Surgical System (dVSS) implementing the first two skill tasks to train the users on their psychomotor skills. This simulator is expected to reduce the time and cost involved for training on da Vinci Surgical System. The thesis discusses the development of a console that preserves the kinesthetics of working on the da Vinci console, and development of a software interface with realistic physics, implementing the first two tasks of RoSS, namely the ball drop task and cylinder positioning task, and validation of the same by human subject testing.
Author: Publisher: ISBN: Category : Languages : en Pages : 94
Book Description
This thesis involves the initial phase of development of a virtual-reality based Robotic Surgery Simulator (RoSS) for the da Vinci Surgical System (dVSS) implementing the first two skill tasks to train the users on their psychomotor skills. This simulator is expected to reduce the time and cost involved for training on da Vinci Surgical System. The thesis discusses the development of a console that preserves the kinesthetics of working on the da Vinci console, and development of a software interface with realistic physics, implementing the first two tasks of RoSS, namely the ball drop task and cylinder positioning task, and validation of the same by human subject testing.
Author: James D. Westwood Publisher: Ios PressInc ISBN: 9781586033200 Category : Medical Languages : en Pages : 422
Book Description
The Proceedings of the 11th annual. Medicine Meets Virtual Reality conference provides current research on many data-centered applications for clinical care and medical education. It is a reference source for IT researchers working in a biomedical context, medical educators, physicians interested in emerging clinical tools, and medical device developers. A major focus is on surgical simulation and supporting technologies: haptics, tissue modeling, and virtual environments. Assessment and validation studies are represented, as well as papers on simulator design and didactics. Another core area is information-guided therapy, from diagnosis through surgery. Discussion of imaging techniques is complemented by papers on visualization, data fusion, and augmented reality. Advances in robotic surgery are also presented.
Author: Matthias Harders Publisher: Springer Science & Business Media ISBN: 184800107X Category : Computers Languages : en Pages : 179
Book Description
This reference book is for anyone involved in generating surgical training scenarios, as well as in VR-based training in general. It examines the main components required to define a scenario, in the context of surgical scene generation: Generation of the scene geometry; modelling of organ appearance; definition of biomechanical parameters. The book is the ideal reference for any reader involved in generating training scenarios, as well as in VR-based training in general.
Author: James D. Westwood Publisher: IOS Press ISBN: 9781586034047 Category : Computer vision in medicine Languages : en Pages : 450
Book Description
A Prototype Virtual Reality System for Preoperative Planning of Neuro-Endovascular Interventions -- Validation of Soft Tissue Properties in Surgical Simulation with Haptic Feedback -- Comparison of CAVE and HM for Visual Stimulation in Postural Control Research -- Virtual Vision Loss Simulator -- Reaction-Time Measurement and Real-Tune Data Acquisition for Neuroscientific Experiments in Virtual Environments -- A Preliminary Study of Presence inVirtual Reality Training Simulation for Medical Emergencies -- An Ali System with Intuitive User Interface for Manipulation and Visualization of 3D Medical Data -- A Haptic Surgical Simulator for the Continuous Curvilinear Capsulorhexis Procedure During Cataract Surgery -- Haptic Rendering of Tissue Cutting with Scissors -- Increasing face validity of a vascular interventional training system -- An Endoscopic Sinus Surgery Training System for Assessment of Surgical Skill -- Acquiring Laparoscopic Manipulative Skills: A Virtual Tissue Dissection Training Module -- Novel Force Resolver Designs for a Haptic Surgery Simulator -- Author Index
Author: James D. Westwood Publisher: IOS Press ISBN: 1586038222 Category : Medical Languages : en Pages : 596
Book Description
We humans are tribal, grouping ourselves by a multitude of criteria: physical, intellectual, political, emotional, etc. The Internet and its auxiliary technologies have enabled a novel dimension in tribal behavior during our recent past. This growing connectivity begs the question: will individuals and their communities come together to solve some very urgent global problems? At MMVR, we explore ways to harness information technology to solve healthcare problems - and in the industrialized nations we are making progress. In the developing world however, things are more challenging. Massive urban poverty fuels violence and misery. Will global networking bring a convergence of individual and tribal problem-solving? Recently, a barrel-shaped water carrier that rolls along the ground was presented, improving daily life for many people. Also the One Laptop per Child project is a good example of how the industrialized nations can help the developing countries. They produce durable and simple laptops which are inexpensive to produce. At MMVR, we focus on cutting-edge medical technology, which is generally pretty expensive. While the benefits of innovation trickle downward, from the privileged few to the broader masses, we should expand this trickle into a flood. Can breakthrough applications in stimulation, visualization, robotics, and informatics engender tools as ingeniously as the water carrier or laptop? With some extra creativity, we can design better healthcare for the developing world too.
Author: James D. Westwood Publisher: IOS Press ISBN: 1586034987 Category : Computers Languages : en Pages : 660
Book Description
Magical describes conditions that are outside our understanding of cause and effect. Even in modern societies, magic-based explanations are powerful because, given the complexity of the universe, there are so many opportunities to use them. The history of medicine is defined by progress in understanding the human body - from magical explanations to measurable results. To continue medical progress, physicians and scientists must openly question traditional models. For thirteen years, MMVR has been an incubator for technologies that create new medical understanding via the simulation, visualization, and extension of reality. Researchers create imaginary patients because they offer a more reliable and controllable experience to the novice surgeon. With imaging tools, reality is purposefully distorted to reveal to the clinician what the eye alone cannot see. Robotics and intelligence networks allow the healer's sight, hearing, touch, and judgment to be extended across distance, as if by magic. The moments when scientific truth is suddenly revealed after lengthy observation, experimentation, and measurement is the real magic. These moments are not miraculous, however. book.
Author: James D. Westwood Publisher: IOS Press ISBN: 9789051993868 Category : Computer simulation Languages : en Pages : 432
Book Description
Medicine is Art Medicine is supported by Science Medicine is enabled by Technology One will learn how leading-edge technology will affect the future of medical and surgical practice by improving access, quality, and continuity of care, while reducing cost. Contributors to the book are the world s leading researchers and developers in the field. Readers: Physicians, Surgeons, Information Scientists, Biomedical Professionals, Corporate Futurists, Biomechanical Engineers, Educators, Roboticists, Medical Technologists, Rehabilitation Specialists, Systems Integrators/Engineers, Psychotherapists/Behaviourists.
Author: Gerard Kim Publisher: Springer Science & Business Media ISBN: 1846282306 Category : Computers Languages : en Pages : 238
Book Description
Developing and maintaining a VR system is a very difficult task, requiring in-depth knowledge in many disciplines. The difficulty lies in the complexity of having to simultaneously consider many system goals, some of which are conflicting. This book is organized so that it follows a spiral development process for each stage, describing the problem and possible solutions for each stage. Much more hands-on than other introductory books, concrete examples and practical solutions to the technical challenges in building a VR system are provided. Part 1 covers the very basics in building a VR system and explains various technical issues in object modeling and scene organization. Part 2 deals with 3D multimodal interaction, designing for usable and natural interaction and creating realistic object simulation. Primarily written for first level graduates, advanced undergraduates and IT professionals will also find this a valuable guide.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The goal of this research was to evaluate a virtual reality (VR)-based simulation of a surgical task by using a model of human motor-control behavior to describe performance. The study was to serve as a basis for formulating general simulator design guidelines. In VR-based simulator design, there are often tradeoffs made between simulation fidelity, or realism, and computational (rendering) load on system processors to ensure acceptable performance. The greater the rendering load, the slower the response of the simulation to user actions and the lower user perceptions of realism. One way to assess the level of fidelity of a VR simulation for surgical training is to determine whether user motor behavior in virtual tasks conforms to established models of real discrete movement task performance, such as Fitts' Law. The implications of computational load on simulator realism can be evaluated by introducing artificial time delays in system responsiveness to control interface actions and determining whether lag is a significant predictor of motor control performance degradations, as compared to no lag conditions. Such assessment can be made by using an extension to Fitts' Law. A secondary objective of this study was to determine whether the impact of computational load on the conformance of motor control behavior with Fitts' Law varied across surgical task complexity settings. In addition to using a Fitts' task to assess the VR simulation, a tracking task with artificial time delays was simulated to assess the level of fidelity of the VR simulation on continuous motor performance. A simple surgical simulator was developed for the study. User performance was tested in virtual tissue cutting (with a virtual scalpel) under different system lag conditions and settings of task difficulty. Four levels of lag were introduced in the response of the simulation to a haptic control device including 0 msec, 50 msec, 100 msec and 150 msec. Two levels of task complexity were investigat.
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Author: James D. Westwood
Author: Matthias Harders
Author: James D. Westwood
Author: James D. Westwood
Author: James D. Westwood
Author: James D. Westwood
Author: Gerard Kim
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Author: Kerm Henriksen