胃肠道螺旋CT仿真内窥镜检查及临床应用评价

目的：探讨胃肠道螺旋CT仿真内窥镜检查方法及临床应用评价并与纤维电子内窥镜相比较。方法：通过对39例病人进行螺旋CT仿真内窥镜检查，采用实时螺旋扫描，GEAW4．0工作站后处理，设定CT阈值和进行图像切割，分别获得胃肠道的仿真内窥镜及立体剖面等3D图像，并与纤维电子内窥镜图像相比较。结果：螺旋CT仿真内窥镜对于胃肠道腔内结构显示与纤维电子内窥镜近似，在观察胃肠道腔外情况如：有无侵犯和转移等方面，优于纤维电子内窥镜。结论：胃肠道螺旋CT仿真内窥镜检查具有无痛、无创、快速、准确的优点，临床应用广泛。与纤维电子内窥镜检查是相辅相成的，是CT横断面图像的重要补充。

The Evaluation on the Clinical Application in Gastrointestinal Examination with Helical CT Virtual Endoscopy

Objective: This article aims at comparing the techniques and diagnostic values of helical CT virtual ceroscopy with those of fiber electronics endoscopy.Methods: 39 cases were real-time-scanned with helical CT endoscopy, then 3D images were obtained within enactmented threshold and incised sections, with GE AW4.0 work station, then the findings were compared with those of fiber electronics endoscopy.Results: the configurations of gastrointestinal antrum obtained with the former is similar to the latter, but better when dealing with other observations, as in displaying whether the objects were impinged or not, or as if it is transferred or not.Conclusion:it has wider range of applications in clinic and advantages such as indolence, no injury, promptness and accuracy. Also, it is an important supplementary to CT transectional images.