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目的：研究支气管动脉扩张在肺动脉栓塞中的临床意义与价值。方法选取2013年4月至2015年1月收治的肺动脉栓塞患者30例作为实验组。另择同期接受胸部 CT 检查的健康者20例作为对照组。观察并记录两组支气管动脉扩张的发生情况。结果实验组支气管动脉显示者25例，对照组显示9例，差异有统计学意义（P <0.05）。实验组支气管动脉扩张16例（53.33%），对照组0例，差异有统计学意义（P <0.05）。实验组支气管动脉扩张的分布情况为：中心组7例，周围组9例。结论肺动脉栓塞者胸部 CT 扫描时，若发现有支气管动脉扩张，提示其肺动脉栓塞的情况较严重。但仍需结合其他危险因素，判断是否该立即对患者进行溶栓治疗。“,”Objective To study the clinical significance and value of bronchial artery dilatation in pulmonary embolism. Methods From April 2013 to January 2015,30 patients with pulmonary embolism were selected as the experiment group. At the same period,20 patients with chest CT examination were selected as the control group. The occurrence of bronchial artery dilatation between the two groups were observed. Results The bronchial artery was showed 25 cases in the experiment group and 9 cases in the control group,there was significant difference(P < 0. 05). In the experiment group,there were 16 cases of bronchial artery dilatation(53. 33% ),that of the control group was 0 case,the percentage was 0,there was significant difference(P < 0. 05). In the experiment group,the distribution of bronchial artery dilatation was as follows:7 cases in the central group and 9 cases in the peripheral group. Conclusion Bronchial artery dilatation detected by chest CT scan indicates that the pulmonary embolism is more severe. However,other risk factors are still need to be combined with,to determine whether the thrombolytic therapy is performed immediately.