【摘要】 CT是诊断新型冠状病毒肺炎(COVID-19)的重要辅助工具。COVID-19的典型CT表现为单侧或双侧肺部单发或多发斑片状纯或混合磨玻璃影，主要分布于胸膜下，下叶为著。在防控COVID-19中，胸部CT将主要在筛查、诊断及判断疗效等3方面发挥重要作用。

    【关键词】 严重急性呼吸综合征冠状病毒2;新型冠状病毒肺炎;体层摄影术，X线计算机

    【Abstract】 CT is an important auxiliary tool for the diagnosis of COVID-19. The typical CT manifestations of COVID-19 are single or multiple patchy areas of ground glass opacity in unilateral or bilateral lungs， which are mainly distributed in the subpleural regions， especially the lower lobe.Chest CT will play an important role in the screening ......