甲型H1N1肺炎的CT影像特征

CT Features of Influenza A(H1N1) Virus Pneumonia

目的:探讨甲型H1N1肺炎CT表现,提高对该病的认识。材料与方法:回顾性分析25例经临床、实验室证实的甲型H1N1肺炎胸部CT表现。25例中男10例,女15例。年龄11～33岁,平均25.5岁。白血球计数2.1 x 10^9/L～11.9 x 10^9/L,中性粒细胞百分数27.1%～93.1%,淋巴细胞百分数3.6%～57.4%。结果:25例中累及5个肺叶11例(占44.0%),累及4个肺叶6例(占24.0%),累及3个肺叶5例(占20.0%),累及2个肺叶3例(占12.0%)。磨玻璃样影8例(占32.0%),表现为小片状及云雾样淡薄影,边缘模糊;实变影10例(占40.0%),表现为团片状、斑片状及棉球样影,密度较高;磨玻璃影合并实变影7例(占28.0%),表现为云雾样淡薄影与棉球样实变影同时存在。25例中实变影中可见支气管充气征8例(占32.0%);病灶内合并网格样改变7例(占28.0%);合并小结节影5例(占20.0%);合并两侧胸腔少量积液2例(占8.0%)。结论:甲H1N1肺炎病变以多发,分布范围广,病灶变化快,CT表现具有一定特征。

Purpose:To study of the CT features of influenza A(HINI) virus pneumonia,improve the knowledge of that disease.Materials and Methods:CT features of 25 cases of influenza A(HINI) virus pneumonia confirmed by clinical finding and laboratory were reviewed retrospectively.There were 9 females and 6 males,from 11~33years(mean 25.5 years) of age.The lencocyte count was increased by 2.1 x 10^9/L^11.9 x 10^9/L,the perecentage of neutrophil was increased by 27.1%~93.1%,the lymphocyte perecentage was increased by 3.6%~57.4%.Results:5 months lobers were involoved of 11 cases(44.0%),4 months lobers were involoved of 6 cases(24.0%),3 months lobers were involoved of 5 cases(20.0%),2 months lobers were involoved of 3 cases(12.0%)of 15 cases.Simple ground samples of 8 cases(32.0%),the features showed small flake and cloud samples and edge blur;Simple consolidation of 10 cases(40.0%),the features showed masses and plaque flake and cotton samples and higther density;Simple ground samples and Simple consolidation of 7 cases(28.0%);the features showed clond samples and cotton shadow.8 cases aerial bronchogram in the real variable of 25 cases(32.0%);7 cases complicated with grid samples(28.0%);5 cases complicated with nodule shadow(20.0%);2 cases littbe pleural effusions of both sides(8.0%).Conclusion:The range wide of the lesion distribution and quick change of influenza A(HINI) virus pneumonia,the CT showed is certoin characteristics.