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Further Validity Evidence for Patient-Specific Virtual Reality Temporal Bone Surgical Simulation.

Steven Arild Wuyts Andersen1, Brad Hittle2, Maria Värendh3,4

  • 1Copenhagen Hearing and Balance Center, Department of Otorhinolaryngology, Rigshospitalet, Copenhagen, Denmark.

The Laryngoscope
|August 31, 2023
PubMed
Summary

Patient-specific virtual reality (VR) simulation for cochlear implant (CI) surgery shows performance differences between trainees and attendings. This study validates VR simulation by comparing virtual drilling with actual surgical outcomes.

Keywords:
cochlear implantation surgerymastoidectomypatient-specific simulationperformance assessmenttrainingvirtual reality simulation

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Area of Science:

  • Neurosurgery
  • Medical Simulation
  • Otolaryngology

Background:

  • Patient-specific virtual reality (VR) simulation offers potential for preoperative rehearsal in cochlear implant (CI) surgery.
  • Validating VR simulation accuracy against actual surgical outcomes is crucial for clinical implementation.

Purpose of the Study:

  • To gather validity evidence for patient-specific VR simulation of CI surgery.
  • To compare virtual surgical performance with postoperative imaging data and expert assessment.

Main Methods:

  • A prospective, multi-institutional study analyzed pre- and postoperative CT scans for VR simulation.
  • Trainees and attendings performed virtual CI surgeries, with performance compared to actual drilled volumes and CISAT scores.

Main Results:

  • Attendings drilled volumes closer to postoperative imaging for cochleostomy, while trainees drilled more in other areas.
  • Trainees achieved higher CISAT scores than attendings, potentially due to visual cue differences in VR.
  • Differences in virtual performance between trainees and attendings were observed.

Conclusions:

  • Patient-specific VR simulation of CI surgery reveals distinct performance patterns between trainees and attendings.
  • The volume comparison method provides a novel approach for validating VR simulation in temporal bone surgery.
  • Further validation is needed before widespread clinical adoption for preoperative rehearsal.