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目的:探讨右肺门支气管、肺动脉和肺静脉在横断面上的配布特点。方法:在44例成人胸部连续横断层标本和5例螺旋CT图像上,追踪观察了右侧第一、二、三肺门处支气管、肺动脉和肺静脉的分支(或属支)及其毗邻关系。结果:从气管杈开始,至底段上、下静脉出现,以7个典型横断面便可清晰显示右肺门管道结构的配布规律:①在气管杈层面,尖段动脉、尖段支气管和后段静脉于奇静脉弓右侧由内向外依次排列;②在右肺上叶支气管层面,后段静脉居后段支气管与前段支气管之间;③在中间支气管层面,右肺上叶动脉上行于中间支气管前方,两者的深面为尖段静脉、前段静脉和后段静脉;④在叶间动脉层面,右肺上叶静脉、叶间动脉和中间支气管由前向后依次排列,在33例(75％)标本中可见到下叶上段动脉的起源;⑤于中间支气管杈层面,中、下叶动脉走行于中、下叶支气管外侧;⑥于基底干支气管层面,在11例(25％)标本中可见中叶静脉直接汇入左心房,内侧底段支气管常与上段静脉段间支同时出现;⑦于底段上、下静脉层面,以各底段支气管为中心,相应动脉呈周围性分布,底段上、下静脉呈向心性走行。结论:通过寻找标志性结构,在横断面上可准确识别右肺门处肺叶和肺段的支气管、肺动脉和肺静脉。
Objective: To investigate the distribution characteristics of the right hilar bronchus, pulmonary arteries and pulmonary veins in the transverse section. Methods: The branch (or branch) of the bronchus, pulmonary artery and pulmonary vein at the first, second and third hilum on the right side and its adjacent relationship were observed and traced in 44 cases of adult chest CT scan and 5 cases of CT scan. Results: From the beginning of the tracheal twigs, to the upper and lower veins of the end segment appeared, with seven typical cross-sections can clearly show the distribution of the right hilar tube structure: ① in the level of the trachea, the tip artery, the splenic branch and the posterior The right ventricle of the ankle vein is arranged in sequence from the inside to the outside; ② the bronchus is located at the posterior segment of the bronchus on the upper lobe of the right lung and posterior segment of the vein is located between the bronchus and the anterior segment bronchus; ③ in the middle bronchial plane, Bronchial anterior, both of the deep surface for the tip vein, anterior segment vein and the posterior segment of the vein; ④ in the level of the interlobular arteries, right upper pulmonary vein, interlobar artery and middle bronchial in order from the front to the rear in 33 cases ( 75%) of the specimens can be seen in the lower lobe artery origin; ⑤ in the middle bronchial twig level, the middle and lower lobe artery walking in the middle and lower lobe bronchial lateral; ⑥ in the basal stem bronchial level, 11 cases (25% Can be seen in the middle of the vein directly into the left atrium, the medial bottom of the bronchial often with the upper segment of the vein segment at the same time appear; ⑦ in the bottom of the upper and lower venous level to the bottom of the bronchus as the center, the corresponding artery was peripheral distribution, the end Section, the lower vein was Mind Traveling. CONCLUSIONS: Bronchial, pulmonary, and pulmonary veins in the lobe and lung segments at the right hilum can be accurately identified in cross-section by looking for signature structures.