儿童轻症支原体肺炎CT影像学表现  

CT Imaging Manifestations of Mild Mycoplasma Pneumonia in Children

作　　者：鲁涛[1] 刘庆功[1] 高伟 穆艳超 Lu Tao;Liu Qinggong;Gao Wei;Mu Yanchao(Department of Radiology,Anyang Maternal and Child Health Hospital,Henan Province,Anyang,Henan,456400)

机构地区：[1]河南省安阳市妇幼保健院放射科,河南安阳456400

出　　处：《现代医用影像学》2024年第11期2004-2008,共5页Modern Medical Imageology

基　　金：安阳市重点研发与推广专项,项目名称:HRCT对支原体肺炎的诊断及病因学相关性的分析,项目编号:2022C01SF067。

摘　　要：目的:通过分析儿童轻症支原体肺炎CT影像学表现,寻找其影像学特征并对其进行量化,从而为儿童支原体肺炎的早期诊断提供依据。方法:回顾性分析64名轻症支原体肺炎患儿(病例组)和60名非支原体感染的其它肺炎患儿(对照组)的影像学资料,比较两组肺炎患儿的影像学表现,找出轻症支原体肺炎患儿的影像学特征。对其支气管壁增厚进行测量,计算支气管管壁厚度(T)与管壁外直径(D)的比值(T/D),并比较在两种肺窗设置下支气管壁的T/D。结果:两组患儿的影像学表现:小叶中心性结节(χ^(2)=21.935,P<0.001)、磨玻璃影(χ^(2)=8.714,P=0.003)和支气管壁增厚(χ^(2)=78.547,P<0.001)之间有统计学意义。两组肺炎患儿在右肺中叶的受累率上有统计学意义(χ^(2)=10.257,P=0.001)。轻症支原体肺炎患儿在两种肺窗设置下的支气管管壁厚度(T)与管壁外直径(D)的T/D(WL=-600HU,WD=1500HU,0.3371±0.06/WL=-450HU,WD=1500HU,0.3286±0.07)之间无统计学意义(t=0.883,P=0.379)。结论:支气管壁增厚、远端支气管的T/D增大是儿童早期支原体肺炎与其他常见肺炎重要的鉴别点,可以为儿童轻症支原体肺炎的早期诊断提供依据。Objective:By analyzing the CT imaging manifestations of mild mycoplasma pneumonia in children,finding its imaging characteristics and quantifying them,so as to provide a basis for the early diagnosis of mycoplasma pneumonia in children.Methods:The imaging data of 64 children with mild mycoplasma pneumonia(case group)and 60 children with other pneumonia without mycoplasma infection(control group)were retrospectively analyzed.The imaging manifestations of pneumonia in the two groups of children were compared to find the imaging characteristics of children with mild mycoplasma pneumonia.The thickening of the bronchial wall was measured,the ratio of bronchial wall thickness(T)to outer diameter(D)(T/D)was calculated,and the T/D of the bronchial wall under two lung window settings was compared.Results:The imaging manifestations of the two groups of children:there were statistical significances among centrilobular nodules(x=21.935,P<0.0001),ground-glass opacity(xX=8.714,P=0.003)and bronchial wall thickening(=78.547,P<0.0001).There was statistical significance in the involvement rate of the right middle lobe of pneumonia in the two groups of children(x?=10.257,P=-0.001).There was no statistical significance in the T/D of bronchial wall thickness(T)to outer diameter(D)of children with mild mycoplasma pneumonia under two lung window settings(WL=-600HU,WD=1500HU,0.3371±0.06/WL=-450HU,WD=1500HU,0.3286±0.07)(t=0.883,P=0.379).Conclusion:Bronchial wall thickening and increased T/D of distal bronchi are important differentiating points between early mycoplasma pneumonia and other common pneumonias in children,which can provide a basis for the early diagnosis of mild mycoplasma pneumonia in children.

关 键 词：支原体肺炎 CT 儿童 

分 类 号：R72[医药卫生—儿科]