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Wearable technology-based metrics for predicting operator performance during cardiac catheterisation.

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Summary

Wearable sensors like eye tracking and electrodermal activity (EDA) can differentiate novice from expert performance in virtual reality surgery. Experts showed distinct visual attention patterns and attentional capacity, correlating with fewer errors.

Keywords:
Attentional capacityEye trackingSimulation-based trainingSurgical simulationWearable technology

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Area of Science:

  • Medical Simulation and Training
  • Wearable Technology in Healthcare
  • Surgical Performance Assessment

Background:

  • Developing unobtrusive metrics for auto-assessment of clinical procedure performance is crucial.
  • Wearable technologies offer potential for real-time performance monitoring.
  • Investigating eye tracking, electrodermal activity (EDA), and accelerometry for metric derivation.

Purpose of the Study:

  • To identify wearable technology-based metrics for automatically discriminating between novice and expert operators in a virtual reality coronary angiography procedure.
  • To assess the utility of eye gaze, psychophysiology, and attentional capacity metrics.

Main Methods:

  • Two groups (novice and expert operators) performed a virtual reality coronary angiography simulation.
  • Eye tracking glasses and an E4 wearable wristband were used to collect data.
  • Attentional capacity was measured using an unrelated visual stimulus task.

Main Results:

  • Experts exhibited greater dwell time and fixations on display screens, particularly when selecting instruments.
  • Experts demonstrated a negative correlation between attentional capacity (visual stimulus task) and total errors.
  • Experts showed a higher standard deviation of electrodermal activity (EDA) compared to novices.

Conclusions:

  • Eye tracking metrics, specifically visual attention patterns, can effectively discriminate between novice and expert operators.
  • An unrelated task is a viable method for measuring attentional capacity during procedures.
  • Wearable sensor data holds promise for objective surgical skill assessment.