摘要
目的综合应用64层螺旋CT3种图像对左肺段级支气管的分支形式进行分类,并探讨CT横断面图像辨认主要分支类型的规律。方法216例门诊患者胸部CT常规扫描资料,重组左肺支气管树、仿真内镜及薄层CT横断面图像,综合应用3种图像对216例左肺段支气管资料分型,探讨CT横断面图像辨认主要分支类型的规律。结果左肺上叶依据上干支气管分支的不同分为3种主要类型,Ⅰ型130例(64):上干分为尖后段支气管和前段支气管;Ⅱ型45例(23):上干分为尖、后、前段支气管;Ⅲ型21例(10);上干分为尖前段及后段支气管。左肺上叶3种主要分支类型可以通过薄层CT横断面图像2个典型层面辨认;左肺下叶依据基底干支气管分支的不同分为2种主要类型,Ⅰ型163例(75):基底干支气管两分支,即内前底段支气管、外后底段支气管;Ⅱ型39例(18):基底干支气管3分支,即内前底段、外侧底段、后底段支气管。下叶两种主要分支类型可以通过薄层CT横断面图像2个典型层面辨认。结论64层螺旋CT多种重组图像综合应用可以真实直观地显示左肺段级支气管分支形式并对其准确分型。
Objective To classify the segmental bronchial patterns of the left upper lobe by combining three post- processing images from 64 slice spiral CT and to study how to identify different ramifications in transverse thin-section CT. Methods Totally 204 patients with routine thorax scans were enrolled. The segmental bronchi were demonstrated in terms of bronchial tree, virtual bronchoscopy and thin-section CT three post-processing images. Integrated with the three post-processing images, the segmental bronchial patterns of the left upper lobar bronchi were classified into several main types, and displayed in transverse thin-section CT. Results The segmental bronchial ramifications of the left upper lobe were classified into three types mainly： common stem of apical and posterior segmental bronchi （64 %, 130/200）, trifurcation （23 % ,45/200）, common stem of apical and anterior segmental bronchi （10 %, 21/200）, and they could be identified in two typical slices of transverse thin-section CT. There were two dominating types in the left basilar segmental bronchi： bifurcation （75%, 163/216）, trifurcation（ 18 %, 39/ 216）, and they could also be identified in two typical slices of transverse thin-section CT. Conclusion The segmental bronchi of the left lung can be definitely classified by three Dost-orocessing images from 64 slice spiral CT.
出处
《解剖学报》
CAS
CSCD
北大核心
2008年第6期931-935,共5页
Acta Anatomica Sinica
