健康女性低剂量胸部CT检查结果及磨玻璃结节状况的调查

Low-dose Chest CT Findings and Investigation of Ground Glass Nodules in Healthy Women

目的:通过对健康女性的胸部CT资料分析,探讨健康女性人群磨玻璃结节(GGN)的发病特点。方法:调查4 906例女性的低剂量胸部CT检查资料,分析各种疾病的患病率、GGN位置及大小的分布情况及GGN患病率与年龄之间的关系。结果:肺结节3 283例,患病率高达66.92%,其中实性结节2 180例,患病率为44.44%;GGN 1 103例,患病率为22.48%。不同部位GGN数量分布不同,单肺患病率高;GGN以直径≤5mm的小结节为主。女性GGN患病率随着年龄的增长而增加,以71～80岁年龄组最高,约为49.30%。与不同年龄段相比,女性GGN患病率之间的差异具有统计学意义(P<0.05)。结论:低剂量CT适合肺部疾病筛查;健康女性GGN发病特点是患病率高,随着年龄的增加逐渐增高,不同部位GGN分布的数量不同,大小主要以直径≤5mm的小结节为著。

Objective:To explore the characteristics of GGN in healthy women by analyzing the chest CT data of healthy women.Methods:The low-dose chest CT examination data of 4 906 women were investigated. The prevalence of various diseases, the distribution of GGN location and size, and the relationship between GGN prevalence and age were analyzed.Results:There were 3 283 cases of pulmonary nodules, the prevalence rate was as high as 66.92%, including 2 180 cases of solid nodules, the prevalence rate was 44.44%;1 103 cases of GGN,the prevalence rate was 22.48%.The distribution of GGN in different parts is different, and the prevalence of single lung is high;GGN is mainly small nodules with diameter ≤5 mm. The prevalence of female GGN increased with age, the highest was in the 71~80 age group, about 49.30%. The difference in the prevalence of GGN among women was statistically significant(P<0.05).Conclusion:Low-dose CT is suitable for lung disease screening. The incidence of GGN in healthy women is characterized by high prevalence, increasing with age, and the number of GGN distribution in different parts is different. The size is mainly small nodules with diameter ≤5 mm.