支气管动脉CTA:动脉直径与中心型肺癌的关系研究

目的:利用CTA探讨中心型肺癌与正常对照者支气管动脉(bronchial artery,BA)显示率、直径大小的差异及BA直径与原发肿块的关系。方法:对42例经病理证实的中心型肺癌患者和51例正常人的BA行CTA检查,采用MPR、MIP、VR等技术对BA进行观察和重建,比较2组之间BA的显示率和直径,对中心型肺癌组BA直径与原发肿块平均直径进行Pearson双变量相关分析。结果:中心型肺癌组与正常组BA显示率与直径比较差异均有统计学意义,中心型肺癌组BA直径与原发肿块平均直径相关系数为0.327,P值为0.034。结论:中心型肺癌BA直径大小与原发肿块大小呈正相关,即BA直径随原发病灶增大而增大。

CT angiography of bronchial artery: correlation of diameter of bronchial artery and central lung cancer

Objective： To evaluate the difference of the detective rate and diameter of bronchial artery （BA） between central lung cancer group and normal control group, and the relationship between diameter of BA and primary tumor with CT angiog raphy （CTA）. Methods： Bronchial artery CTA was performed with 42 patients of central lung cancer confirmed by pathology and 51 normal persons. MPR, MIP and VR were used for the observation and reconstruction of BA. The detective rate and di ameter of BA were measured and compared. Pearson correlation was calculated between diameter of BA and average diameter of primary tumor in central lung cancer group. Results： There were significant differences in the detective rate and diameler of BA between central lung cancer and normal control group. Correlalion coefficient was 0. 327 while P was 0. 034 between diameter of BA and average diameter of primary tumor in central lung cancer group. Conclusion： Positive correlation is revealed bdween di- ameter of BA and size of primary tumor in central lung cancer group, diameter of BA increased as size of primary tumor increa-