C. G. Guan, L. Serra, R. Kockro, N. Hern, W. Nowinski, Chumpon Chan
{"title":"Volume-based tumor neurosurgery planning in the Virtual Workbench","authors":"C. G. Guan, L. Serra, R. Kockro, N. Hern, W. Nowinski, Chumpon Chan","doi":"10.1109/VRAIS.1998.658486","DOIUrl":"https://doi.org/10.1109/VRAIS.1998.658486","url":null,"abstract":"We present a virtual reality application to neurosurgical pre-operative planning which is undergoing clinical evaluation at the Singapore General Hospital. The application, based on the ISS Virtual Workbench, lets the neurosurgeon study the brain pathology, blood vessels, skull and the surrounding tissue using real-time volumetric rendering of the patient data. With this information, the surgeon can plan the best approach for surgery. At the moment, seven cases have been planned. The system features measuring markers, multi-modal data fusion of a patient's data, different visualization modes, tissue enhancement through manipulation of colour, look-up tables, cloning of region of interest, and interactive pathology outlining.","PeriodicalId":105542,"journal":{"name":"Proceedings. IEEE 1998 Virtual Reality Annual International Symposium (Cat. No.98CB36180)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127858773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aiding orientation performance in virtual environments with proprioceptive feedback","authors":"N. H. Bakker, P. Werkhoven, P. O. Passenier","doi":"10.1109/VRAIS.1998.658419","DOIUrl":"https://doi.org/10.1109/VRAIS.1998.658419","url":null,"abstract":"In most applications of virtual environments (VEs), like training and design evaluation, a good sense of orientation is needed in the VE. Orientation performance when moving around in the real world relies on visual as well as proprioceptive feedback. However, the navigation metaphors which are used to move around the VE often lack proprioceptive feedback. Furthermore, the visual feedback in a VE is often relatively poor compared to the visual feedback available in the real world. Therefore, we have quantified the influence of visual and proprioceptive feedback on orientation performance in VEs. Subjects were immersed in a virtual forest and were asked to turn specific angles using three navigation metaphors, differing in the kind of proprioceptive feedback which is provided (no proprioceptive feedback, vestibular feedback, and vestibular and kinesthetic feedback). The results indicate that the most accurate turn performance is found when kinesthetic feedback is present, in a condition where subjects use their legs to turn around. This indicates that incorporating this kind of feedback in navigation metaphors is quite beneficial. Orientation on only the visual component is most inaccurate, leading to progressively larger undershoots for larger angles.","PeriodicalId":105542,"journal":{"name":"Proceedings. IEEE 1998 Virtual Reality Annual International Symposium (Cat. No.98CB36180)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134212870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crashing in cyberspace-evaluating structural behaviour of car bodies in a virtual environment","authors":"M. Schulz, T. Ertl, Thomas Reuding","doi":"10.1109/VRAIS.1998.658485","DOIUrl":"https://doi.org/10.1109/VRAIS.1998.658485","url":null,"abstract":"The use of virtual prototypes generated from engineering simulations can be crucial to the efficient development of innovative products. Performance predictions and functional evaluations of a design are possible long before results of real prototype tests are available. With the rise in model complexity, data quantity, computing performance and accuracy, we increasingly fined ourselves lacking the tools, methods and metaphors to deal with the information that is being generated. We present new results of on-going research at the University of Erlangen and BMW in the development of a virtual environment for car-body engineering applications as illustrated by examples from acoustics, vibration and impact dynamics.","PeriodicalId":105542,"journal":{"name":"Proceedings. IEEE 1998 Virtual Reality Annual International Symposium (Cat. No.98CB36180)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116146078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MediSim: a prototype VR system for training medical first responders","authors":"S. Stansfield, D. Shawver, A. Sobel","doi":"10.1109/VRAIS.1998.658490","DOIUrl":"https://doi.org/10.1109/VRAIS.1998.658490","url":null,"abstract":"This paper presents a prototype virtual reality (VR) system for training medical first responders. The initial application is to battlefield medicine and focuses on the training of medical corpsmen and other front-line personnel who might be called upon to provide emergency triage on the battlefield. The system is built upon Sandia's multi-user, distributed VR platform and provides an interactive, immersive simulation capability. The user is represented by an Avatar and is able to manipulate his virtual instruments and carry out medical procedures. A dynamic casualty simulation provides realistic cues to the patient's condition (e.g. changing blood pressure and pulse) and responds to the actions of the trainee (e.g. a change in the color of a patient's skin may result from a check of the capillary refill rate). The current casualty simulation is of an injury resulting in a tension pneumothorax. This casualty model was developed by the University of Pennsylvania and integrated into the Sandia MediSim system.","PeriodicalId":105542,"journal":{"name":"Proceedings. IEEE 1998 Virtual Reality Annual International Symposium (Cat. No.98CB36180)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122610835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Virtual reality training for the diagnosis of prostate cancer","authors":"G. Burdea, G. Patounakis, V. Popescu, R. Weiss","doi":"10.1109/VRAIS.1998.658489","DOIUrl":"https://doi.org/10.1109/VRAIS.1998.658489","url":null,"abstract":"Prostate cancer is the second leading cause of cancer death among men (25% of men with prostate cancer will die of the disease). The most common method of detecting this malignancy is digital rectal examination (DRE). Current DRE training requires medical students to examine a large number of patients before attaining adequate experience. We propose to solve this problem using a virtual reality digital rectal examination simulation. The prototype system consists of a PHANToM haptic interface which provides feedback to the trainee's index finger, a motion restricting board and an SGI workstation, which renders the patient's anatomy in the region of interest. Four types of prostate were modeled using OpenGL and GHOST haptic library-normal, enlarged with no tumor, incipient malignancy (single tumor), and advanced malignancy (tumor cluster). Results of initial human factors studies are encouraging, while pointing out the need for more realistic physical modeling.","PeriodicalId":105542,"journal":{"name":"Proceedings. IEEE 1998 Virtual Reality Annual International Symposium (Cat. No.98CB36180)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133040071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}