Download or read book Development of a Virtual reality Based Simulator for Da Vinci Surgical System written by and published by . This book was released on 2008 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Medicine Meets Virtual Reality 11 written by James D. Westwood and published by Ios PressInc. This book was released on 2003 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Surgical Scene Generation for Virtual Reality Based Training in Medicine written by Matthias Harders and published by Springer Science & Business Media. This book was released on 2008-03-30 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Medicine Meets Virtual Reality 12 written by James D. Westwood and published by IOS Press. This book was released on 2004 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Medicine Meets Virtual Reality 16 written by James D. Westwood and published by IOS Press. This book was released on 2008 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Medicine Meets Virtual Reality 13 written by James D. Westwood and published by IOS Press. This book was released on 2005 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Medicine Meets Virtual Reality written by James D. Westwood and published by IOS Press. This book was released on 1998 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Designing Virtual Reality Systems written by Gerard Kim and published by Springer Science & Business Media. This book was released on 2007-01-04 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Modeling the Effects of Time Lag in Virtual Reality VR Based Haptic Surgical Simulator written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Advances in Patient Safety written by Kerm Henriksen and published by . This book was released on 2005 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: v. 1. Research findings -- v. 2. Concepts and methodology -- v. 3. Implementation issues -- v. 4. Programs, tools and products.
Download or read book Simulation based Medical Training written by Erik Lövquist and published by Cambridge Scholars Publishing. This book was released on 2011-05-25 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores the development process of a Virtual Reality (VR) and web-based medical training system from a user-centred perspective. It highlights the importance of user participation in this context by analysing two case studies concerned with the development of a VR and web-based medical training system for Spinal Anaesthesia. It illustrates the relationship between user participation and the development process of a VR and web-based medical training system. User groups, along with their input and degrees of participation and influence, are classified. It shows how a democratic arrangement between users and developers is beneficial and maybe even mandatory in order to utilise the users’ guidance efficiently. In this arrangement, the use of prototypes is instrumental in bridging the expertise and knowledge gap between users and developers. Reading this volume may aid other research teams developing VR and web-based medical training systems in deciding if, why and how to involve relevant user groups in the overall development process.
Download or read book System Innovation for a World in Transition written by Artde Donald Kin-Tak Lam and published by CRC Press. This book was released on 2023-12-27 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: System Innovation for a World in Transition: Applied System Innovation IX, includes the contributions presented at the IEEE 9th International Conference on Applied System Innovation (ICASI 2023, Chiba, Japan, 21-25 April 2023). The conference received more than 600 submitted papers from 12 different countries, whereby roughly one quarter of these papers was selected to present at ICASI 2023. The book aims to provide an integrated communication platform for researchers from a wide range of topics including information technology, communication science, applied mathematics, computer science, advanced material science, and engineering. Hopefully, it will enhance interdisciplinary collaborations between science and engineering technologists in the fields of academics and related industries.
Download or read book Augmented Reality Virtual Reality and Computer Graphics written by Lucio Tommaso De Paolis and published by Springer. This book was released on 2016-06-10 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2-volume set LNCS 9768 and 9769 constitutes the refereed proceedings of the Third International Conference on Augmented Reality, Virtual Reality and Computer Graphics, AVR 2016, held in Lecce, Italy, in June 2016. The 40 full papers and 29 short papers presented werde carefully reviewed and selected from 131 submissions. The SALENTO AVR 2016 conference intended to bring together researchers, scientists, and practitioners to discuss key issues, approaches, ideas, open problems, innovative applications and trends on virtual and augmented reality, 3D visualization and computer graphics in the areas of medicine, cultural heritage, arts, education, entertainment, industrial andmilitary sectors.
Download or read book Development of Virtual Reality Tools for Arthroscopic Surgery Training written by Fadi Yaacoub and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The minimally invasive approach of arthroscopy means less pain and faster recovery time for patients compared to open surgery. However, it implies a high difficulty of performance. Therefore, surgeon should remain at a high level of technical and professional expertise to perform such operations. Surgeon's skills are being developed over years of surgical training on animals, cadavers and patients. Nowadays, cadavers and animal specimens present an ethical problem also the practice on real humans is usually risky. For surgeons to reach a high level, new and alternative ways of performing surgical training are required. Virtual reality technology has opened new realms in the practice of medicine. Today, virtual reality simulators have become one of the most important training methods in the medical field. These simulators allow medical students to examine and study organs or any structure of the human body in ways that were not possible few years earlier. Similarly, the surgeon as well as the medical student can gain a valuable experience by performing a particular surgery with an anatomical accuracy and realism as it is actually performed in the real world. Thus, they can practice on virtual operation before they proceed and operate on real patients. In this thesis, a virtual reality training simulator for wrist arthroscopy is introduced. Two main issues are addressed: the 3-D reconstruction process and the 3-D interaction. Based on a sequence of CT images a realistic representation of the wrist joint is obtained suitable for the computer simulation. Two main components of the computer-based system interface are illustrated: the 3-D interaction to guide the surgical instruments and the user interface for haptic feedback. In this context, algorithms that model objects using the convex hull approaches and simulate real time exact collision detection between virtual objects are presented. A force feedback device, coupled with a haptic algorithm, is used as a haptic interface with the computer simulation system. This leads in the development of a low cost system with the same benefits as professional devices. In this regard, the wrist arthroscopy can be simulated and medical students can learn the basic skills required with safety, flexibility and less cost.
Download or read book Development of a Portable Simulator for Training Robot Assisted Surgery written by and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The possibility of using virtual reality sumulators in surgical training was proposed more than a decade ago. This form of training holds the potential of reducing the need for mechanical models and animals in surgical training without compromising surgical outcome in the operating room (OR). Mechanical trainers are being used to train and evaluate laparoscopic surgical skills, but compared to virtual reality simulators the assembly of mechanical trainers is time consuming. SimSurgery's vision is to increase clinical performance and to reduce healthcare cost by offering solutions for better training and computer assisted tools in surgery.
Download or read book Robotics in Neurosurgery written by Jorge Alvaro González Martínez and published by Springer Nature. This book was released on 2022-09-30 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a state-of-the art review of this field and demonstrates the basic applications of robotic surgery in the field of neurosurgery, exposing its basic principles, practical technical nuances, and advantages and limitations related to the technology. It also provides a concise yet comprehensive summary of the current status of the field that will help guide patient management and stimulate investigative efforts. All chapters are written by experts in their fields and include the most up to date scientific and clinical information. Robotics in Neurosurgery: Principles and Practice will serve as a valuable resource for clinicians, surgeons, engineers and researchers dealing with, and interested in, this challenging and promising field in robotics applied to neurosurgery.
Download or read book A Fuzzy Logic Based Virtual Surgery System written by Shanthanand Kutuva Rabindranath and published by . This book was released on 2006 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtual Reality (VR) and associated technologies are experiencing growing importance in medicine and surgery. Virtual surgery simulation can help surgeons to explore optimal surgical operations, thus reducing risks in the real surgery. It helps doctors to train medical students in a cost effective manner. Virtual surgery simulation demands fast and real time performance. The finite element method has been used for surgery simulations; however, finite element method is computationally intensive and is unsuitable for real time simulation of cutting large amount of tissue in arbitrary paths. We have developed a fuzzy logic based system which involves significantly reduced computational time and provides real time simulation of soft tissue cutting in any desired paths. The user-exerted forces on a simulated cutting tool held by the user are dynamically measured and fed to the fuzzy logic system. The user-exerted forces and the stiffness of the element are first fuzzified and fed to a fuzzy rule base to provide the output membership values. These output membership values are then defuzzified using the centroid defuzzification technique to provide a crisp output of the cutting depth. The computed cutting depth is then sent to the visualization module, which provides realistic rendering of surgical tools, surgery objects, and their interactions to the surgeons in a 3D virtual environment. It animates the entire surgical process in the virtual environment and allows surgeons to view the surgical simulation in any vantage point. To realistically render the soft tissue during a virtual surgery process, his study also explores a novel method to take care of structural and textural changes in the soft tissue by splitting and cloning internal mesh nodes. A virtual surgery system, completed with its five subsystems, has been designed and implemented. A multi threaded approach has been used to implement the system. This isolates the data acquisition system from the simulation system so that both modules can be synchronized without any speed penalty. This also makes the system more responsive to user interactions. Experiments with the system have shown that the fuzzy logic based virtual surgery system is capable of simulating soft tissue cutting along any desired path in real time. Further work is under way to measure the accuracy of the system. It has also been proposed to port the system to a distributed environment so that virtual surgical operations can be broadcasted to the internet.
