17例新型冠状病毒肺炎(COVID-19)CT影像特征与分析

目的分析新型冠状病毒肺炎(COVID-19)的CT征象,探讨CT的诊断价值。方法回顾性分析3家医院共17例确诊COVID-19病人的CT影像资料,分析其特征性影像表现,并总结病变发生特点、累及部位和分布情况。结果17例病人中1例CT无异常征象。其余16例病人的CT上共显示111个病变,典型的CT表现包括磨玻璃密度影(62/111,55.9%)、混合磨玻璃密度影(16/111,14.4%)、实性密度影(18/111,16.2%)和“铺路石样”密度影(15/111,13.5%);病变多分布于双肺外带(93/111,83.8%)。全部病例均不伴有胸腔积液及纵隔淋巴结肿大。结论新型冠状病毒肺炎胸部CT表现有一定特征性,CT检查对发现病变及明确诊断具有重要作用。

CT features and analysis of 17 cases of COVID-19

Objective To investigate the CT features of Corona Virus Disease 2019(COVID-19)and evaluate the CT value in the diagnosis.Methods CT images of 17 confirmed COVID-19 patients from 3 hospitals were retrospectively analyzed.The characteristic manifestations of the disease on CT imaging were analyzed,and the characteristics of single/multiple lesions,affected sites,and distribution of lesions were summarized.Results All patients presented abnormal CT findings with a single exception,a total of 111 lesions were identified in the 16 patients.The typical CT findings included ground-glass opacity(62/111,55.9%),consolidation with ground glass opacity(16/111,14.4%),consolidation(18/111,16.2%)and crazy-paving pattern(15/111,13.5%).The lesions were mostly distributed in the peripheral zone of lungs(93/111,83.8%).No case presented pleural effusion and lymphadenopathy of the mediastina.Conclusion The CT imaging of COVID-19 has certain characteristic manifestations,and CT plays an important role in the detection and definite diagnosis of lesions.