Schaller S, Strauss G, Krinninger M, Hurka F, Hofer M, Meixensberger J, Dietz A, Strauss M, Lueth T C
Universitätsklinikum Leipzig, Klinik für Hals-Nasen-Ohrenheilkunde, Germany.
Laryngorhinootologie. 2011 Jun;90(6):353-7. doi: 10.1055/s-0031-1275340. Epub 2011 May 25.
With the application of optical navigation systems an interruption of the line of sight (LOS) between navigation camera and the patient/instrument can occur. The goal of this work is the clinical evaluation of a newly developed system for automatic adjusting of an optical navigation camera (Navigation Camera Assistant, NCA). NCA is a miniature robot, which is able to position the navigation camera autonomously in 2 levels.
The influence of the NCA was examined on 128 patients: 55 procedures at the paranasal sinuses and 9 procedures at the temporal bone with the NCA were evaluated and compared with available workflow data of adequate surgeries without NCA. An optical navigation system of the 3 (rd) generation was used. The following parameters were recorded: Preparation time of the system, time of using the system, LOS-interruptions.
The LOS-interruption decreased in the group of FESS with application of the NCA by 92%, in the group tympanic cavity by 85%. The number of corrective motions of the navigation camera was increased with application of the NCA in the group FESS by 73%, in the group tympanic cavity by 89%. The usage time of navigation increased with the application of the NCA in the group of FESS by 36%, in the group tympanic cavity by 16%.
With a motorized navigation camera can be the interruption rate of LOS significantly improved at frontal and lateral skull base. The technical expenditure for installation of the NCA robot is little even during, for this reason there is the potential that this module can be established for the clinical practice.
随着光学导航系统的应用，导航摄像头与患者/器械之间的视线（LOS）可能会中断。本研究的目的是对一种新开发的光学导航摄像头自动调整系统（导航摄像头助手，NCA）进行临床评估。NCA是一个微型机器人，能够在两个层面上自主定位导航摄像头。
在128例患者中检查了NCA的影响：评估了55例鼻窦手术和9例颞骨手术中使用NCA的情况，并与没有NCA的适当手术的可用工作流程数据进行了比较。使用了第三代光学导航系统。记录了以下参数：系统准备时间、系统使用时间、视线中断情况。
在应用NCA的功能性内镜鼻窦手术（FESS）组中，视线中断减少了92%，在鼓室组中减少了85%。在FESS组中，应用NCA后导航摄像头的校正动作数量增加了73%，在鼓室组中增加了89%。在FESS组中，应用NCA后导航的使用时间增加了36%，在鼓室组中增加了16%。
使用电动导航摄像头可显著提高额部和侧颅底的视线中断率。安装NCA机器人的技术成本即使在……期间也很低，因此该模块有在临床实践中应用的潜力。
