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Related Experiment Video

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Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator
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Validation of NOViSE.

Przemyslaw Korzeniowski1, Daniel C Brown1, Mikael H Sodergren1

  • 11 Imperial College London, London, UK.

Surgical Innovation
|September 28, 2016
PubMed
Summary
This summary is machine-generated.

NOViSE, a virtual reality (VR) simulator for natural orifice transluminal endoscopic surgery (NOTES), demonstrates strong face and content validity. This VR simulator shows early signs of construct validity, proving effective for NOTES training.

Keywords:
NOTESflexible endoscopynatural orifice surgerytransgastric cholecystectomyvirtual reality simulator

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Area of Science:

  • Medical Simulation
  • Surgical Training Technologies
  • Virtual Reality in Medicine

Background:

  • Natural orifice transluminal endoscopic surgery (NOTES) offers minimally invasive procedures but requires specialized training.
  • Existing training methods for NOTES may have limitations in terms of patient safety, cost, or accessibility.
  • Development of advanced simulators is crucial for effective and safe surgical skill acquisition.

Purpose of the Study:

  • To establish the face, content, and construct validity of NOViSE, a novel force-feedback enabled virtual reality (VR) simulator.
  • To evaluate NOViSE as a training tool for simulated hybrid transgastric cholecystectomies.
  • To assess the potential of NOViSE for developing a comprehensive VR training curriculum for NOTES.

Main Methods:

  • Fourteen surgeons and trainees performed simulated transgastric cholecystectomies on the NOViSE VR simulator.
  • Participants were categorized into 'NOTES experts' and 'Novices' based on prior experience.
  • Face and content validity were assessed using a 5-point Likert-type scale questionnaire; construct validity was evaluated through performance metrics.

Main Results:

  • NOViSE demonstrated good overall face validity, with over 50% agreement on realism and simulator behavior.
  • 85.7% of participants found NOViSE a useful training tool for NOTES, and 71.4% would recommend it.
  • Construct validity was supported by experts showing faster task completion times and shorter path lengths compared to novices.

Conclusions:

  • NOViSE effectively simulates transgastric hybrid cholecystectomies, indicating high face and content validity.
  • The simulator shows promising early signs of construct validity, differentiating performance between experts and novices.
  • NOViSE provides a foundation for a safe and effective VR training curriculum for NOTES, potentially reducing the need for animal models.