摘要目的:构建一种评估肺挫伤的新方法。方法:回顾2021年6月1日至2022年3月1日上海市第六人民医院收治的肺挫伤胸外伤患者的临床资料。制订纳入、排除标准。入组患者分别用杨氏指数法和体积重建法评估肺挫伤程度。并将两种方法的计算结果进行相关性分析。结果:65例患者入组。体积重建法组肺挫伤比值0.08~0.62，平均0.16±0.12，杨氏指数法组肺挫伤比值0.14~1.10，平均0.32±0.22。杨氏指数法与体积重建法计算结果呈线性相关。结论:杨氏指数法计算方法简便，计算结果可信，可以作为一种评估肺挫伤的新方法。

abstractsObjective:To construct a new method for evaluating pulmonary contusion.Methods:Review the clinical data of blunt chest trauma patients with pulmonary contusion admitted to Shanghai Sixth People's Hospital from June 1, 2021 to March 1, 2022.Establishing inclusion and exclusion criteria.The degree of pulmonary contusion in the enrolled cases was assessed using Yang's index method and volume reconstruction method. And conduct correlation analysis on the calculation results of the two methods.Results:65 patients were enrolled. The pulmonary contusion ratio in the volume reconstruction method group was 0.08-0.62, with an average of 0.16±0.12, and the pulmonary contusion ratio in the Yang's index method group was 0.14-1.10, with an average of 0.32±0.22. The results calculated by the Yang's index method and the volume reconstruction method were linearly correlated.Conclusion:The calculation method of Yang's index method is simple and the calculation results are reliable. It can be used as a new method to evaluate pulmonary contusion.