Article ; Online: Early CT features and temporal lung changes in COVID-19 pneumonia in Wuhan, China.
2020 Volume 128, Page(s) 109017
Abstract: ... The typical early CT features of COVID-19 pneumonia are ground-glass opacity, and located peripheral or ... the changing trend of coronavirus disease 2019 (COVID-19) pneumonia.: Materials and methods: Forty-six ... patients with COVID-19 pneumonia who had an isolated lesion on the first positive CT were enrolled ...
| Abstract | Purpose: To analyse the high-resolution computed tomography (HRCT) early imaging features and the changing trend of coronavirus disease 2019 (COVID-19) pneumonia. Materials and methods: Forty-six patients with COVID-19 pneumonia who had an isolated lesion on the first positive CT were enrolled in this study. The following parameters were recorded for each lesion: sites, sizes, location (peripheral or central), attenuation (ground-glass opacity or consolidation), and other abnormalities (supply pulmonary artery dilation, air bronchogram, interstitial thickening, etc.). The follow-up CT images were compared with the previous CT scans, and the development of the lesions was evaluated. Results: The lesions tended to be peripheral and subpleural. All the lesions exhibited ground-glass opacity with or without consolidation. A higher proportion of supply pulmonary artery dilation (89.13 % [41/46]) and air bronchogram (69.57 % [32/46]) were found. Other findings included thickening of the intralobular interstitium and a halo sign of ground glass around a solid nodule. Cavitation, calcification or lymphadelopathy were not observed. The reticular patterns were noted from the 14 days after symptoms onset in 7 of 20 patients (45 %). At 22-31 days, the lesions were completely absorbed only in 2 of 7 patients (28.57 %). Conclusion: The typical early CT features of COVID-19 pneumonia are ground-glass opacity, and located peripheral or subpleural location, and with supply pulmonary artery dilation. Reticulation was evident after the 2nd week and persisted in half of patients evaluated in 4 weeks after the onset. Long-term follow-up is required to determine whether the reticulation represents irreversible fibrosis. |
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| MeSH term(s) | Betacoronavirus/pathogenicity ; COVID-19 ; China/epidemiology ; Coronavirus Infections/diagnostic imaging ; Coronavirus Infections/epidemiology ; Coronavirus Infections/physiopathology ; Coronavirus Infections/virology ; Disease Progression ; Female ; Humans ; Lung/diagnostic imaging ; Lung/pathology ; Lung/physiopathology ; Lung/virology ; Male ; Middle Aged ; Pandemics ; Pneumonia, Viral/diagnostic imaging ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/physiopathology ; Pneumonia, Viral/virology ; SARS-CoV-2 ; Tomography, X-Ray Computed/methods |
| Keywords | covid19 |
| Language | English |
| Publishing date | 2020-04-19 |
| Publishing country | Ireland |
| Document type | Journal Article |
| ZDB-ID | 138815-0 |
| ISSN | 1872-7727 ; 0720-048X |
| ISSN (online) | 1872-7727 |
| ISSN | 0720-048X |
| DOI | 10.1016/j.ejrad.2020.109017 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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