螺旋CT模拟内窥镜检查临床应用初步报告

目的：运用螺旋ＣＴ扫描进行模拟内窥镜技术的方法及临床应用，探讨空腔器官内表面检查的指证。方法：将螺旋ＣＴ容积扫描数据传送到工作站，通过强大的计算机后处理功能重建出空腔器官内表面图像，经电影回放显示其正常解剖结构。结果：气管、支气管及结肠螺旋ＣＴ模拟内窥镜获得的效果可与纤维内窥镜检查显示空腔器官内表面的结构相媲美。结论：该项技术属非侵入性检查，安全可靠，病人无插管的痛苦，对于年老体弱，或不愿接受纤维内窥镜检查的患者，提供了一种良好的检查方法。

Helical CT Virtual Endoscopy:A Report of Preliminary Clinical Application

Objective: To study the inner walls of gas-containing organs by applying the technique of helical CT virtual endoscopy and by making a clinical application. Methods: The volumetric data which were acquired using a helical CT scanner were transferred to a computer workstation.The images of the inner walls of gas-containing organs were reconstructed by the strong re-dealing function of the computer,to show the normal structure of anatomy by playing back in movie format. Results: The effect of applications of helical CT virtual endoscopy in showing the inner walls of tracheobronchial tree and colon was the same as those of fiberoptic endoscopy. Conclusion: This technique is an nonivasive diagnostic method.It is safe and reliable,and there is no pain for the patients;besides,it also provides a better diagnostic method for those patients who dont want to have a check by fiberoptic endoscopy.