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首页> 外文期刊>Neurosurgery >Magnetically guided 3-dimensional virtual neuronavigation for neuroendoscopic surgery: technique and clinical experience.
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Magnetically guided 3-dimensional virtual neuronavigation for neuroendoscopic surgery: technique and clinical experience.

机译：用于神经内镜手术的磁性3维虚拟神经导航技术和临床经验。

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OBJECTIVE: The authors have developed a novel intraoperative neuronavigation with 3-dimensional (3D) virtual images, a 3D virtual navigation system, for neuroendoscopic surgery. The present study describes this technique and clinical experience with the system. METHODS: Preoperative imaging data sets were transferred to a personal computer to construct virtual endoscopic views with image segmentation software. An electromagnetic tracker was used to acquire the position and orientation of the tip of the neuroendo-scope. Virtual endoscopic images were interlinked to an electromagnetic tracking system and demonstrated on the navigation display in real time. Accuracy and efficacy of the 3D virtual navigation system were evaluated in a phantom test and on 5 consecutive patients undergoing neuroendoscopic surgery. RESULTS: Virtual navigation views were consistent with actual endoscopic views and trajectory in both phantom testing and clinical neuroendoscopic surgery. Anatomic structures that can affect surgical approaches were adequately predicted with the virtual navigation system. The virtual semitransparent view contributed to a clear understanding of spatial relationships between surgical targets and surrounding structures. Surgical procedures in all patients were performed while confirming with virtual navigation. In neurosurgery with a flexible neuroscope, virtual navigation also demonstrated anatomic structures in real time. CONCLUSION: The interactive method of intraoperative visualization influenced the decision-making process during surgery and provided useful assistance in identifying safe approaches for neuroendoscopic surgery. The magnetically guided navigation system enabled navigation of surgical targets in both rigid and flexible endoscopic surgeries.
机译：目的：作者开发了一种新颖的术中神经导航，其中包含用于神经内窥镜手术的3维（3D）虚拟图像，3D虚拟导航系统。本研究描述了该技术和该系统的临床经验。方法：术前成像数据集被转移到个人计算机上，以使用图像分割软件构建虚拟内窥镜视图。使用电磁跟踪器来获取神经内窥镜尖端的位置和方向。虚拟内窥镜图像与电磁跟踪系统互连，并在导航显示屏上实时显示。 3D虚拟导航系统的准确性和有效性在幻像测试中以及连续5例接受神经内镜手术的患者中进行了评估。结果：在模型测试和临床神经内窥镜手术中，虚拟导航视图与实际内窥镜视图和轨迹一致。虚拟导航系统已充分预测了可能影响手术方法的解剖结构。虚拟的半透明视图有助于清晰地了解手术目标与周围结构之间的空间关系。通过虚拟导航确认所有患者的手术过程。在具有柔性神经镜的神经外科手术中，虚拟导航还可以实时显示解剖结构。结论：术中可视化的交互式方法影响了手术过程中的决策过程，为确定神经内镜手术的安全方法提供了有益的帮助。磁性导航系统可以在刚性和柔性内窥镜手术中导航手术目标。

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