Virtual Surgery Training Environment by murplelake78

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									               Virtual Surgery Training Environment




     •   Overview
     •   Problem Space
     •   Proposed solution
     •   Purpose and value
     •   Conceptual Model
     •   Cognitive Walkthrough
     •   Prototype sketches
     •   Summary
     •   Q&A




10/23/2003                Ledford / Lui / Luzcando
                                Problem Space

  Today’s virtual surgery training solutions offer limited realistic
  training environments where remote collaboration is possible,
  making wide acceptance of the technology difficult. Performing
  surgery requires extensive training, knowledge and preparation
  and potential candidates do not have an opportunity to try out
  what it would be like to perform surgery until they are committed
  to the study program.




    Commonwealth Scientific & Industrial          Cave Automatic Virtual Environment
    Research Organization (CSIRO) Haptic                       (CAVE)
                Workbench


10/23/2003                     Ledford / Lui / Luzcando
      Collaborative environment (CSIRO Haptic Workbench)




10/23/2003             Ledford / Lui / Luzcando
                         Proposed solution


  The main objective of VISTE is to allow trainees to take their
  virtual experiences and convert them to experimental knowledge.
  The effectiveness of VISTE can only be tested in real surgery, but
  progress can be measured by advancing through the difference
  user levels available in the system. Users should be able to feel
  they are actually performing surgery, where the user’s actions
  and decisions are reflected on the interface and appropriate
  feedback received. Also, users should have an easy and efficient
  way to communicate with the system and other users during the
  simulation. The system can be setup to let users decide what
  level of mistakes they can make and what consequences are
  given to their actions.




10/23/2003                Ledford / Lui / Luzcando
                        Purpose and value


  The main target audiences of VISTE are medical students and
  faculty interested in enhancing their skills or learning new
  procedures. The virtual world would provide users with the
  ability to learn new surgery skills and react to unexpected
  situations introduced purposely by the simulation, testing the
  knowledge and reaction of users to real life situations. VISTE
  would be valuable to higher education institutions; however it
  could be used by potential users’ colleges, high schools, and
  even grade schools giving children the opportunity to test novice-
  level versions of the virtual simulation.




10/23/2003                Ledford / Lui / Luzcando
                       Conceptual Model

Possible solutions

Rationale of design                                Tactile gloves

Interface metaphor                                      Audio

Scenario selection                                     Glasses

Role selection                                           Mic

Playback                                          Instruction display

Tutorials                                              Console

Voice recognition

Performance analysis

   10/23/2003          Ledford / Lui / Luzcando
                       Cognitive Walkthrough


  To develop the cognitive walkthrough we developed a common
  scenario and used a whiteboard to sketch the physical system
  and application design. A designee distributed this information
  and each team member was to navigate through the various
  steps and provide feedback for improving the interface and
  application flow. By discussing our first impressions of the initial
  design we were able to suggest modifications for the final
  product, although the implementation of these changes are out
  of scope for this project.




10/23/2003                 Ledford / Lui / Luzcando
             Prototype sketches




10/23/2003    Ledford / Lui / Luzcando
             Summary and questions




10/23/2003      Ledford / Lui / Luzcando

								
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