新型冠状病毒肺炎无症状感染者的CT影像分析

CT image features of asymptomatic patients with novel coronavirus pneumonia

目的:分析新型冠状病毒肺炎无症状感染者的CT影像特点,探究新型肺炎CT排查的诊断价值。方法:回顾性分析武汉市中心医院临床确诊的159例新型冠状病毒肺炎无症状感染者的CT图像,对病灶分布、肺叶累及、病灶范围及病灶特点进行统计和分析。结果:新型冠状病毒肺炎无症状感染者病灶多分布于肺外周(89. 3%),双肺分布多见(57. 2%),多累及2个及以上肺叶(62. 9%),病灶主要表现为磨玻璃密度影(95%)。在短期复查中,大多数患者预后较好(73. 7%)。结论:新型冠状病毒肺炎无症状感染者CT图像具有一定影像的特征,胸部CT检查在密切接触感染人群的排查中具有重要的诊断价值。

Objective: To analyze the CT image characteristics of asymptomatic patients with coronavirus disease 2019(COVID-19) and explore the diagnostic value of CT examination.Methods: CT images were retrospectively analyzed from 159 asymptomatic patients with COVID-19 diagnosed clinically in the Central Hospital of Wuhan.Results: On the CT images of these patients, the lesions were mostly peripheral distribution of lung in 142 cases(89. 3%) and bilateral lung distribution in 91 cases(57. 2%), and more than two lung lobes(62. 9%) were involved. Most of the lesions are ground-glass like(95%). In short-term follow-up, most patients had a better prognosis(73. 7%).Conclusion: CT images of asymptomatic patients with COVID-19 have certain imaging characteristics, and chest CT examination has important diagnostic value in the screening the COVID-19 patients from the closecontact people.