ORTHOPEDIC SURGERY TRAINING SIMULATION

2007 ◽  
Vol 07 (01) ◽  
pp. 37-53 ◽  
Author(s):  
OLGA SOURINA ◽  
ALEXEI SOURIN ◽  
HOWE TET SEN
Keyword(s):  
Virtual Reality ◽  
Computer Graphics ◽  
Learning Curve ◽  
Blood Vessels ◽  
Virtual Environment ◽  
Orthopedic Surgery ◽  
Spatial Skills ◽  
3 Dimensional ◽  
Surgery Training ◽  
Training Simulation

Surgical training is one of the most promising areas in medicine where 3-D computer graphics and virtual reality techniques are emerging. Orthopedic surgery is a discipline requiring appreciation and understanding of complex 3-dimensional bony structures and their relationships to nerves, blood vessels and other vital structures. Learning these spatial skills requires a lengthy period and much practice. In this paper, we present a software simulator which was developed to aid in the understanding of the complex 3-dimensional relationships between bones and implants. The developed software cuts down the learning curve and allows for better and more precise surgery by letting the surgeon practice the surgery in a virtual environment before undertaking the actual procedure.

Creating Freeform Model by Carving Virtual Workpiece With Haptic Interface

Manufacturing ◽  
2002 ◽  
Author(s):  
Ming C. Leu ◽  
Aditya Velivelli ◽  
Xiaobo Peng
Keyword(s):  
Virtual Reality ◽  
Computer Graphics ◽  
Virtual Environment ◽  
Geometric Modeling ◽  
Force Feedback ◽  
Haptic Rendering ◽  
Haptic Interface ◽  
Virtual Sculpting ◽  
Haptic Displays ◽  
Virtual Workpiece

This paper presents the development of a virtual sculpting system, with the goal of enabling the user to create a freeform model by carving a virtual workpiece with a virtual tool while providing haptic interface during the sculpting process. A virtual reality approach is taken to provide stereoscopic viewing and force feedback, thus making the process of model creation in the virtual environment easier and more intuitive. The development of this system involves integrating techniques and algorithms in geometric modeling, computer graphics, and haptic rendering. Multithreading is used in an attempt to address the different update rates required in the graphic and haptic displays.

Virtual reality-based spatial skills assessment and its role in computer graphics education

2006 ◽  
Author(s):  
Nathan W. Hartman ◽  
Patrick E. Connolly ◽  
Jeffrey W. Gilger ◽  
Gary R. Bertoline ◽  
Justin Heisler
Keyword(s):  
Virtual Reality ◽  
Computer Graphics ◽  
Skills Assessment ◽  
Spatial Skills

scholarly journals Virtual Reality in Orthopedic Surgery Training

2021 ◽  
Vol Volume 12 ◽  
pp. 1295-1301
Author(s):  
Laith K Hasan ◽  
Aryan Haratian ◽  
Michael Kim ◽  
Ioanna K Bolia ◽  
Alexander E Weber ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Orthopedic Surgery ◽  
Surgery Training

Stereo modeling of HVEM specimens by serial tilting and computer graphics

1986 ◽  
Vol 44 ◽  
pp. 34-35
Author(s):  
J.R. McIntosh ◽  
D.L. Stemple ◽  
William Bishop ◽  
G.W. Hannaway
Keyword(s):  
Computer Graphics ◽  
Analytical Methods ◽  
Photographic Film ◽  
Complex Structures ◽  
Multiple Objects ◽  
Multiple Images ◽  
3 Dimensional

EM specimens often contain 3-dimensional information that is lost during micrography on a single photographic film. Two images of one specimen at appropriate orientations give a stereo view, but complex structures composed of multiple objects of graded density that superimpose in each projection are often difficult to decipher in stereo. Several analytical methods for 3-D reconstruction from multiple images of a serially tilted specimen are available, but they are all time-consuming and computationally intense.

scholarly journals Rear-Seat Productivity in Virtual Reality: Investigating VR Interaction in the Confined Space of a Car

2021 ◽  
Vol 5 (4) ◽  
pp. 15
Author(s):  
Jingyi Li ◽  
Ceenu George ◽  
Andrea Ngao ◽  
Kai Holländer ◽  
Stefan Mayer ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Physical Space ◽  
Rear Seat ◽  
Virtual Space ◽  
Future Research ◽  
Confined Space ◽  
Physical Restraints ◽  
Working Environments ◽  
Research And Design

Ubiquitous technology lets us work in flexible and decentralised ways. Passengers can already use travel time to be productive, and we envision even better performance and experience in vehicles with emerging technologies, such as virtual reality (VR) headsets. However, the confined physical space constrains interactions while the virtual space may be conceptually borderless. We therefore conducted a VR study (N = 33) to examine the influence of physical restraints and virtual working environments on performance, presence, and the feeling of safety. Our findings show that virtual borders make passengers touch the car interior less, while performance and presence are comparable across conditions. Although passengers prefer a secluded and unlimited virtual environment (nature), they are more productive in a shared and limited one (office). We further discuss choices for virtual borders and environments, social experience, and safety responsiveness. Our work highlights opportunities and challenges for future research and design of rear-seat VR interaction.

scholarly journals Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 397
Author(s):  
Qimeng Zhang ◽  
Ji-Su Ban ◽  
Mingyu Kim ◽  
Hae Won Byun ◽  
Chang-Hun Kim
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Mobile Device ◽  
User Satisfaction ◽  
Virtual World ◽  
User Study ◽  
Visual Display ◽  
Point Of View ◽  
Head Mounted Display ◽  
And Behavior

We propose a low-asymmetry interface to improve the presence of non-head-mounted-display (non-HMD) users in shared virtual reality (VR) experiences with HMD users. The low-asymmetry interface ensures that the HMD and non-HMD users’ perception of the VR environment is almost similar. That is, the point-of-view asymmetry and behavior asymmetry between HMD and non-HMD users are reduced. Our system comprises a portable mobile device as a visual display to provide a changing PoV for the non-HMD user and a walking simulator as an in-place walking detection sensor to enable the same level of realistic and unrestricted physical-walking-based locomotion for all users. Because this allows non-HMD users to experience the same level of visualization and free movement as HMD users, both of them can engage as the main actors in movement scenarios. Our user study revealed that the low-asymmetry interface enables non-HMD users to feel a presence similar to that of the HMD users when performing equivalent locomotion tasks in a virtual environment. Furthermore, our system can enable one HMD user and multiple non-HMD users to participate together in a virtual world; moreover, our experiments show that the non-HMD user satisfaction increases with the number of non-HMD participants owing to increased presence and enjoyment.

scholarly journals Global variability in orthopedic surgery training

2019 ◽  
Author(s):  
Andrew D. Sobel ◽  
Davis Hartnett ◽  
David Hernandez ◽  
Adam E. M. Eltorai ◽  
Alan H. Daniels
Keyword(s):  
United States ◽  
Orthopedic Surgery ◽  
Orthopaedic Surgery ◽  
Educational Development ◽  
The United States ◽  
Surgery Training ◽  
Orthopaedic Care ◽  
The World ◽  
Orthopaedic Training ◽  
And Training

Medical and orthopaedic training varies throughout the world. The pathways to achieve competency in orthopaedic surgery in other countries differ greatly from those in the United States. This review summarizes international educational requirements and training pathways involved in the educational development of orthopaedic surgeons. Understanding the differences in training around the world offers comparative opportunities which may lead to the improvement in education, training, and competency of individuals providing orthopaedic care.

A Virtual Reality System for Pre-Planning of Robotic-Assisted Prostate Biopsy

2015 ◽  
Vol 772 ◽  
pp. 585-590
Author(s):  
Florin Gîrbacia ◽  
Silviu Butnariu ◽  
Daniel Voinea ◽  
Bogdan Tzolea ◽  
Teodora Gîrbacia ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual Reality System ◽  
Surgical Robots ◽  
Robotic Assisted ◽  
Biopsy Procedure ◽  
Planning Software ◽  
Operative Planning ◽  
Serial Robot ◽  
Needle Trajectory

Surgical robots for biopsy procedure require pre-operative planning of trajectories prior to be used for needle guiding procedures. Virtual Reality (VR) technologies allow to simulate robotic biopsy procedure and to generate accurate needle trajectories that avoid vital organs. The paper presents a serial robot which can be used for biopsy procedure and a needle trajectory planning software based on VR technologies. A virtual environment has been modelled and simulations for robotic-assisted biopsy of the prostate have been performed.

scholarly journals Designing and evaluating a workstation in real and virtual environment: toward virtual reality based ergonomic design sessions

2013 ◽  
Vol 8 (2) ◽  
pp. 199-208 ◽  
Author(s):  
Charles Pontonnier ◽  
Georges Dumont ◽  
Asfhin Samani ◽  
Pascal Madeleine ◽  
Marwan Badawi
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Ergonomic Design
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