一种用于神经外科手术的新型简单、经济有效的导航系统（EASY 导航仪）。
A New Simple, Cost-Effective Navigation System (EASY Navigator) for Neurosurgical Interventions.
机构信息
Department of Surgery, Consultant Neurosurgeon, College of Medicine, University of Baghdad, Baghdad, Iraq.
Biomedical Engineering Department, College of Engineering, Al-Nahrain University, Baghdad, Iraq.
出版信息
World Neurosurg. 2022 Aug;164:143-147. doi: 10.1016/j.wneu.2022.04.100. Epub 2022 Apr 29.
BACKGROUND
Navigation technique facilitates reaching deeply seated masses more precisely with the least sacrifice of normal tissues. There are 2 primary navigation systems: electromagnetic and infrared (optical). The technique is based on recording the head position intraoperatively and merging this image with preoperative magnetic resonance imaging.
METHODS
We tried to replace these conventional navigating systems with a simple technique using free software (3-dimensional slicer) and a computer air mouse. The study was designed into 3 stages. In stage 1, we used this method on 3-dimensional printed models of patients' magnetic resonance images with deeply seated brain tumors. In stage 2, we performed the surgeries on patients. In the last stage, we used both the conventional navigation system with our method simultaneously on the same patients and compared the accuracy of both methods.
RESULTS
This new system was as accurate as conventional navigating systems, ranging from ±2 mm.
CONCLUSIONS
This new technique, if done properly, can replace conventional methods with less time of preparation, and its cost is almost free.
背景
导航技术可以更精确地到达深部病灶，同时最大限度地减少正常组织的损伤。目前有两种主要的导航系统：电磁导航和红外（光学）导航。该技术基于术中记录头部位置，并将该图像与术前磁共振成像融合。
方法
我们试图用一种简单的方法来替代这些传统的导航系统，该方法使用免费软件（3D 切片器）和电脑无线鼠标。该研究分为三个阶段。在第一阶段，我们在三维打印的患者磁共振图像模型上使用了这种方法，这些模型上有深部脑肿瘤。在第二阶段，我们对患者进行了手术。在最后一个阶段，我们在同一患者身上同时使用传统导航系统和我们的方法，并比较了两种方法的准确性。
结果
这个新系统的准确性与传统导航系统相当，误差在±2 毫米范围内。
结论
如果操作得当，这种新技术可以替代传统方法，准备时间更短，而且成本几乎为零。
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