Cartellieri M, Vorbeck F
Department of Otorhinolaryngology, University of Vienna, Austria.
Laryngoscope. 2000 Feb;110(2 Pt 1):292-6. doi: 10.1097/00005537-200002010-00020.
The use of three-dimensional navigation systems provides information on the structures surrounding the field of operation and thereby reduces the risk of iatrogenic damage. The computed tomography (CT) data conventionally used are provided by preoperative scanning procedures, which means that tissue changes coming about during surgery are not seen on the screen. An intraoperative CT scanning procedure being able to update the CT data could provide a solution.
Endoscopic sinus operations using an intraoperative CT updating the three-dimensional navigation system were performed on six persons to find out, whether the above is true.
Different parameters, advantages, and disadvantages in the cases of these six patients were compared with a group of 22 patients who underwent conventional endoscopic sinus surgery with different three-dimensional navigation systems without updating the CT data set.
The intraoperative CT for updating the three-dimensional navigation system provides useful information for the surgeon.
Balancing its advantages against its disadvantages, the updating of the CT data set with intraoperative CT cannot be recommended for conventional standard endoscopic sinus surgery.
使用三维导航系统可提供手术区域周围结构的信息，从而降低医源性损伤风险。传统使用的计算机断层扫描（CT）数据由术前扫描程序提供，这意味着手术过程中发生的组织变化在屏幕上无法看到。能够更新CT数据的术中CT扫描程序可能提供一种解决方案。
对6名患者进行了使用术中CT更新三维导航系统的鼻内镜鼻窦手术，以确定上述情况是否属实。
将这6例患者的不同参数、优缺点与一组22例接受不同三维导航系统但未更新CT数据集的传统鼻内镜鼻窦手术患者进行比较。
用于更新三维导航系统的术中CT为外科医生提供了有用信息。
权衡其优缺点，术中CT更新CT数据集不推荐用于传统标准鼻内镜鼻窦手术。
