现代术中导航系统在尸体模型中用于颞骨手术的准确性。
Accuracy of a Modern Intraoperative Navigation System for Temporal Bone Surgery in a Cadaveric Model.
机构信息
Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Department of Otolaryngology, New York Eye and Ear Infirmary of Mount Sinai, New York, New York, USA.
出版信息
Otolaryngol Head Neck Surg. 2019 Nov;161(5):842-845. doi: 10.1177/0194599819864292. Epub 2019 Sep 24.
OBJECTIVES
To determine the accuracy of a modern navigation system in temporal bone surgery. While routine in other specialties, navigation has had limited use in the temporal bone due to issues of accuracy, perceived impracticality, and value.
STUDY DESIGN
Prospective observational study.
SETTING
Temporal bone laboratory.
SUBJECTS AND METHODS
Eighteen cadaveric specimens were dissected after rigid fiducials were implanted and computed tomography scans were obtained. Target registration and target localization errors were then measured at various points.
RESULTS
The mean overall target registration error was 0.48 ± 0.29 mm. The mean target localization error was 0.54 mm at the sinodural angle, 0.48 mm at the lateral semicircular canal, 0.55 mm at the round window, 0.39 mm at the oval window, and 0.52 mm at the second genu of the facial nerve.
CONCLUSION
A modern navigation system demonstrated submillimeter accuracy for all points of interest. Its use in clinical as well as training settings has yet to be fully elucidated.
目的
确定现代导航系统在颞骨手术中的准确性。尽管在其他专业中已常规使用导航，但由于准确性、实用性和价值等问题，其在颞骨中的应用受到限制。
研究设计
前瞻性观察性研究。
设置
颞骨实验室。
受试者和方法
在刚性基准点植入和获得计算机断层扫描后，对 18 具尸体标本进行解剖。然后测量在不同点的目标注册和目标定位误差。
结果
平均总体目标注册误差为 0.48 ± 0.29 毫米。在岩-鼓角处的平均目标定位误差为 0.54 毫米，在外侧半规管处为 0.48 毫米，在圆窗处为 0.55 毫米，在卵圆窗处为 0.39 毫米，在面神经第二膝处为 0.52 毫米。
结论
现代导航系统在所有感兴趣的点都表现出亚毫米级的准确性。其在临床和培训环境中的应用尚未完全阐明。
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