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是一个难点。因为气管是从口腔观察不可见的区域。为此，我们研制了一种新型的气管内可视化系统，以支持气管内吸引术的技术指导教育。在本研究中，我们使用计算机断层扫描数据重建颈部和气管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的视点和视区。该系统利用三维CT数据显示内窥镜图像，正确显示内窥镜的观察点和观察区域，以显示虚拟吸引管插入颈部时的解剖位置、距离和曲率距离。因此，该系统可以掌握无创安全技术和有科学依据的气管内吸痰。问卷调查结果显示，该教学体系对学习吸痰技术的护生有效，学习积极性高，方法实用。

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.