摘要
目的 探讨支气管走行方向对仿真支气管成像效果的影响。方法 12 0例正常自愿者人群均分为 6组 ,分别接受不同参数组合的成像 ,并分别对第S1、S4、S6、S8、S10段支气管作CT仿真支气管镜 (VB)观察 ,测定VB下最末端支气管内径。结果 与轴面接近垂直走行的段支气管S1、S10在仿真内镜下走行最远 ,测量管径最细小 ;接近水平走行的段支气管S4、S6在仿真内镜下测量管径最大 ;斜行支气管S8在上述两者之间。结论 支气管的走行方向直接影响仿真支气管镜的观察效果 ,垂直于扫描平面的支气管效果最佳。
Objective To investigate the impact of bronchial orientation on virtual bronchoendoscopy (VB). Methods A study of different scan parameters and reconstructive methods sets (Marconi MX 8000 scanner) were undertaken in 120 normal volunteers (equally divided into six groups); S1,S4,S6,S8 and S10 bronchi were observed,and the luminal diameters of the distal bronchi were measured under VB. Results The luminal diameter of S1/S10 (these bronchi were vertical to axial section) under VB was the smallest,while that of S4/S6 (these bronchi were parallel to axial section) was the largest,and that of S8 was the median. Conclusion The bronchial orientation had direct influence on VB,and the bronchi vertical to axial section was best evaluated.
出处
《中国医学影像技术》
CSCD
2003年第2期183-185,共3页
Chinese Journal of Medical Imaging Technology
