Ultra-high-fidelity virtual reality mastoidectomy simulation training: a randomized, controlled trial
Research output: Contribution to journal › Journal article › Research › peer-review
Purpose: Ultra-high-fidelity (UHF) graphics in virtual reality (VR) simulation might improve surgical skill acquisition in temporal bone training. This study aims to compare UHF VR simulation training with conventional, screen-based VR simulation training (cVR) with respect to performance and cognitive load (CL). Methods: In a randomized trial with a cross-over design, 24 students completed a total of four mastoidectomies in a VR temporal bone surgical simulator: two performances under UHF conditions using a digital microscope and two performances under conventional conditions using screen-based VR simulation. Performances were assessed by two blinded raters using an established assessment tool. In addition, CL was estimated as the relative change in secondary-task reaction time during simulation when compared with individual baseline measurements. Data were analyzed using linear mixed model analysis for repeated measurements. Results: The mean final-product performance score was significantly lower in UHF VR simulation compared to cVR simulation [mean difference 1.0 points out of 17 points, 95% CI (0.2–1.7), p = 0.02]. The most important factor for performance during UHF simulation was the ability to achieve stereovision (mean difference = 3.4 points, p < 0.001). Under the UHF VR condition, CL was significantly higher than during cVR (28% vs. 18%, respectively, p < 0.001). Conclusion: UHF graphics in VR simulation training reduced performance and induced a higher CL in novices than conventional, screen-based VR simulation training. Consequently, UHF VR simulation training should be preceded by cVR training and might be better suited for the training of intermediates or experienced surgeons.
Original language | English |
---|---|
Journal | European Archives of Oto-Rhino-Laryngology |
Volume | 277 |
Issue number | 5 |
Pages (from-to) | 1335-1341 |
Number of pages | 7 |
ISSN | 0937-4477 |
DOIs | |
Publication status | Published - 2020 |
- Cadaveric dissection, Mastoidectomy, Simulation-based training, Surgical education, Temporal bone surgery
Research areas
ID: 253148057