胸部气道的CT研究

Computed Tomography in the Evaluation of Bronchial Tree

作者采用自己设计的两种扫描方法与常规扫描方法对照对６７例患者的正常气道的ＣＴ表现进行分析，比较不同扫描方法在显示气道方面的优劣。结果显示：常规ＣＴ扫描方法能显示大部分支气管分枝，最远可分辨亚段支气管，但对右侧Ｂ４、Ｂ５，左侧Ｂ２、ＬＢ、Ｂ４、Ｂ５及两侧Ｂ７、Ｂ８显示差；扫描架向头侧倾斜２５°能明显改善右侧Ｂ４、Ｂ５，左侧ＬＢ、Ｂ４、Ｂ５的显示情况。

This Paper analyzed the normal appearances of the bronchial tree of 67 cases by comparison of 25 cranially oblique CT scanning and conventional vertical CT scanning.The results showed that the least visualized segmental bronchi were B4、B5、B7、B8 in the right and B2,LB、B4、B5、B7、B8,in the left with conventional vertical CT scanning,and with 25 cranially oblique CT scanning, the improvement of visualization was observed on the following rami:B4、B5 in the right and LB、B4、B5 in the left (P<0.1),specially in the left B4 and B5(P<0.01).