新型冠状病毒肺炎的早期CT征象  

Early CT manifestations of COVID-19

作　　者：张杨[1] 袁玉山[1] 张磊[1] 马培旗 乔阿龙 ZHANG Yang;YUAN Yushan;ZHANG Lei;MA Peiqi;QIAO Along(Department of Radiology,Fuyang People's Hospital,Fuyang,Anhui Province 236000,China)

机构地区：[1]阜阳市人民医院放射科,安徽阜阳236000

出　　处：《实用放射学杂志》2020年第5期732-734,744,共4页Journal of Practical Radiology

基　　金：阜阳市应急科技攻关项目(FK20202815-1).

摘　　要：目的探讨新型冠状病毒肺炎(COVID-19)的早期CT征象.方法12例临床确诊为COVID-19患者发病1~10 d内行14次胸部CT检查,分析其CT表现及肺段受累情况.将两侧肺分为上、中、下3区,每一区域内病变累及范围评分0~4分,计算其CT评分(满分24分).结果COVID-19主要表现为磨玻璃密度影(9/14,64.2%),次要征象包括磨玻璃影伴实变(5/14,35.7%)、小叶内间隔增厚(6/14,42.8%)、纤维化病灶(7/14,50%)等.病灶通常为两肺弥漫性分布,以胸膜下多见,平均累及8.6个肺段,平均CT评分6.1分.病程1~3 d时平均累及4.5个肺段,CT评分3.75分;病程4~6 d时平均累及8个肺段,CT评分6.4分;病程7~10 d,平均累及12.6个肺段,CT评分7.8分.结论COVID-19早期CT表现以磨玻璃密度影为主,可伴有实变、小叶内间隔增厚、纤维化病灶等,常两肺多发、弥漫性分布,且病变范围随发病时间呈上升趋势.Objective To study the early CT manifestations of COVID-19.Methods Fourteen chest CT scanning examinations were performed in 12 patients with COVID 19 within 1 to 10 days after onset.The findings on the CT images and the segmental involvement were analyzed.Each lung was divided into three zones。each zone was evaluated for the percentage of lung involvement.Summation of scores from all six lung zones provided overall CT score(maximal CT score,24).Results Of 14 chest CT images studied,groundglass opacities were observed in 9 cases(9/14,64.2%).The secondary findings included ground glass opecities plus consolidation(5/14,35.7%),interlobular thickening(6/14.42.8%)and pulmonary fibrosis(7/14,50%).The lesions were usually diffusely distributed in both lungs and were usually located in subpleural regions.The mean number of lung segments involved was 8.6 segments,and the mean CT scores was 6.1.A peripheral loeation of the opacities was also reasonably common。and the range of the lesion increased with the.onset time.During 1-3 days,4-6 days,7 to 10 days after onset of symptoms,4.5,8 and 12.6 lung segments were involved,and the CT score was 3.75,6.4 and 7.8 respectively.Conclusion The early CT manifestations of COVID-19 are mainly ground glass opaci-ties,which can be accompanied by consolidation,interlobular septal thickening,fibrosis lesions,which are usually multiple and diffuse in both lungs eand the lesions shows an increasing trend with the onset time.

关 键 词：新型冠状病毒肺炎 计算机体层成像 

分 类 号：R563[医药卫生—呼吸系统] R814.42[医药卫生—内科学]