目的 探究64排螺旋CT支气管动 脉(Bronchial artery,BA)成像的特征， 了解BA起源、走行、数量、直径、位置关 系以及周围淋巴结结构等生理解剖情况， 为进一步应用64排螺旋CT支气管动脉成 像(BA-CTA)诊断肺部疾病奠定基础。方法 选取2013年2月至2014年12月来我院与佳 木斯大学医学院附属第一医院就诊、拟行 胸部CT检查的肺部疾病患者共85例，对所 有患者进行常规CT检查和64排螺旋CT BACTA检查，观察患者BA、肺部淋巴结的显 影情况及显影质量的差异性。结果 64排 螺旋CT BA-CTA检查在左、右以及整体纵 膈段BA显影数量均明显优于常规CT检查， 具有统计学意义(P＜0.05)。64排螺旋CTA 检查在BA直径和周围淋巴结显示情况与常 规CT检查相比，差异具有统计学意义(P ＜0.05)，优于常规CT检查；64排螺旋CTA 检查的成像质量上与常规CT检查相比，差 异具有统计学意义(P＜0.05)，优于常规 CT检查。结论 64排螺旋CT BA-CTA较常规 CT更为清楚，直观，全面，对BA起源、走 行、数量、直径、位置关系以及周围淋巴 结结构等生理解剖特征显示清楚，对肺部 疾病的进一步诊断具有重要意义。

Objective To investigate the characteristics of the bronchial artery by using 64-slice spiral CT imaging, in order to grasp the anatomy structure of bronchial artery, including the origin, distribution, amount, diameter, location and the lymph nodes around, and to lay a foundation for further diagnosis of the bronchial artery pulmonary disease with 64-slice spiral CT imaging. Methods A total of 85 cases with pulmonary disease and planed to have chest CT scan in our hospital and Jiamusi University First Affiliated Hospital were collected from February 2013 to December 2014. All patients were examined by common CT and 64-slice spiral CT BA-CTA after obtaining the agreement from patients and their family members. The imaging of the bronchial artery and the lymph nodes around were observed, and the differences of condition and quality between the common CT and 64- slice spiral CT were investigated. Results The number of the single left, single right and overall meditational segmental bronchus artery demonstrated by 64-slice spiral CT BACTA was larger than common CT (P＜0.05), the difference had statistical significance. The display capability of the artery diameters and the lymph nodes around which examined by 64-slice spiral CT CTA was significantly better than common CT for P＜0.05. All the imaging quality by using 64-slice spiral CT CTA was better than common CT for P＜0.05. Conclusion It is more complete and intuitive by using 64-slice spiral CT to show the origin, branch, number diameter, location of the bronchial artery and the lymph nodes around than normal CT, which plays a important role in the diagnosis of pulmonary disease.