Department of Otorhinolaryngology, Kuopio University Hospital, Puijonlaaksontie 2, 70210 Kuopio, PL 100, 70029, Kuopio, Finland.
School of Medicine, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland.
Eur Arch Otorhinolaryngol. 2022 Sep;279(9):4303-4312. doi: 10.1007/s00405-021-07183-9. Epub 2021 Nov 27.
PURPOSE: There is only limited data on the application of virtual reality (VR) for the evaluation of temporal bone anatomy. The aim of the present study was to compare the VR environment to traditional cross-sectional viewing of computed tomography images in a simulated preoperative planning setting in novice and expert surgeons. METHODS: A novice (n = 5) and an expert group (n = 5), based on their otosurgery experience, were created. The participants were asked to identify 24 anatomical landmarks, perform 11 distance measurements between surgically relevant anatomical structures and 10 fiducial markers on five cadaver temporal bones in both VR environment and cross-sectional viewings in PACS interface. The data on performance time and user-experience (i.e., subjective validation) were collected. RESULTS: The novice group made significantly more errors (p < 0.001) and with significantly longer performance time (p = 0.001) in cross-sectional viewing than the expert group. In the VR environment, there was no significant differences (errors and time) between the groups. The performance of novices improved faster in the VR. The novices showed significantly faster task performance (p = 0.003) and a trend towards fewer errors (p = 0.054) in VR compared to cross-sectional viewing. No such difference between the methods were observed in the expert group. The mean overall scores of user-experience were significantly higher for VR than cross-sectional viewing in both groups (p < 0.001). CONCLUSION: In the VR environment, novices performed the anatomical evaluation of temporal bone faster and with fewer errors than in the traditional cross-sectional viewing, which supports its efficiency for the evaluation of complex anatomy.
目的:虚拟现实(VR)在颞骨解剖评估中的应用数据有限。本研究的目的是比较 VR 环境与传统横断面查看 CT 图像在新手和专家外科医生模拟术前规划中的应用。
方法:根据耳科手术经验,创建了一个新手组(n=5)和一个专家组(n=5)。要求参与者在 VR 环境和 PACS 界面的横断面视图中,在 5 个尸体颞骨上识别 24 个解剖标志、进行 11 次手术相关解剖结构之间的距离测量和 10 次基准标记。收集了性能时间和用户体验(即主观验证)的数据。
结果:新手组在横断面视图中比专家组犯了更多的错误(p<0.001),且用时更长(p=0.001)。在 VR 环境中,两组之间没有显著差异(错误和时间)。新手在 VR 中的表现提高得更快。与横断面视图相比,新手在 VR 中的任务表现更快(p=0.003),错误更少(p=0.054)。但在专家组中,两种方法之间没有观察到这种差异。两组的用户体验总体评分均显著高于横断面视图(p<0.001)。
结论:在 VR 环境中,新手比传统的横断面视图更快、错误更少地进行颞骨解剖评估,这支持其在评估复杂解剖结构方面的效率。
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