Development of novel education system for endotracheal suctioning using the virtual CT bronchoscopy.

对护生进行气管内吸引术的技术指导教学难度较大。因为气管是从嘴里看不见的区域。因此，我们开发了新的气管内可视化系统，为气管内吸引术的技术指导教育提供支持。在这项研究中，我们使用计算机断层扫描数据重建颈部和气管内的虚拟内窥镜的三维图像。虚拟内窥镜图像可以实时显示在任意位置，并显示在三维颈部图像上的视点和视区中。该系统利用三维CT数据，在颈部放置虚拟吸引管时，能够正确显示具有视点和视区指示的内窥镜图像，以显示其解剖位置、距离和曲率-距离。因此，该系统可以掌握无创安全技术的气管内吸引术，并有科学依据。结果问卷调查结果表明，该教学体系适用于学习气管内吸引术的护生，具有较高的实践性学习动机。

It is difficult to teach technical guidance of endotracheal suctioning for the nursing students. Because of trachea is the nonvisible area to observation from the mouth. So we developed new endotracheal visualization system to support for the education of technical guidance in endotracheal suctioning. In this present study, we reconstruct the three-dimensional image of the neck and virtual endoscopy in the trachea using the computed tomography data. The virtual endoscopic images can displayed in any position in real-time and displayed in the view point and view area on the three dimensional neck images. To reveal anatomical position, distance and the curvature-distance when inserting the virtual suction drain in the neck, this system can display endoscopic image with indication of view point and view area correctly using three dimensional CT data. So, this system could be master the endotracheal suctioning with non-invasive safe technology and with based on scientific evidence. Results of a questionnaire survey, we got the result this novel education system was available for nursing students who were studied endotracheal suctioning technique with a high motivation for learning in practical ways.