CT Features of Omicron Variant Moderate COVID-19 Patients in Large Square Hospital
Odjective To investigate the chest CT features of patients with moderate novel coronavirus pneumonia(COVID-19)caused by Omicron variant in large shelter hospitals,aimed to improve the understanding of the CT findings of moderate COVID-19.Methods The chest CT features of 381 patients with moderate COVID-19 of Omicron variant were retrospectively analyzed in the Fangcang shelter hospital of National Exhibition and Convention Center.The evaluation contents include:lesion distribution(right/left lung,upper/middle/lower lobe,subpleural/peribronchovascular type),range(bilateral/unilateral,number of lobes),signs of lung parenchyma involvement(ground-glass opacities,consolidation,strip),signs of airway involvement(centrilobular nodules,tree in bud nodules,bronchial wall thickening and mucus embolism).Results Among 381 cases,300 cases were over 50 years old.Lesions distribution:The lesions were mostly involved in the lower lobe of the right lung and/or the left lung(298 cases),and were mainly peripheral-distributed(320 cases).Lesions range:195 cases(51.2％)were bilateral involvement,149 cases(48.8％)were unilateral involvement,and 307 cases were involved no more than three lung lobes.The lesions were mainly involved lung parenchyma,with ground glass density in 359 cases,consolidation in 51 cases,and stripe in 55 cases.Some patients showed signs of airway involvement,with centrilobular nodules in 18 cases,tree in bud nodules in 11 cases,bronchial wall thickening and mucus embolism in 7 cases.Conclusion Moderate COVID-19 were mostly found in middle-aged and older adults over 50 years old.Chest CT showed ground-glass opacities distributed in the subpleural area of the lower lobes,with or without consolidation,and the signs of airway involvement were rare.
NETL
NSTL
万方数据
维普
