Comparison between original SARS-CoV-2 strain and omicron variant on thin-section chest CT imaging of COVID-19 pneumonia; [Vergleich zwischen dem Original-SARS-CoV-2-Stamm und der Omikron-Variante in der Dünnschicht-Thorax-CT-Bildgebung bei COVID-19-Pneumonie]

被引：0

作者：

pingping Z. ^{[1
]}

Yanyu Z. ^{[1
]}

Xuri S. ^{[1
]}

Qiming H. ^{[2
]}

Yi W. ^{[2
]}

Guoliang T. ^{[1
,3
,4
]}

机构：

[1] Department ICU of the Second Affiliated Hospital, Fujian Medical University, No. 34, Zhongshan North Road, Licheng District, Fujian, Quanzhou City

[2] Department of Medical Imaging of the Second Affiliated Hospital, Fujian Medical University, No. 34, Zhongshan North Road, Licheng District, Fujian, Quanzhou City

[3] Wuhan Jinyintan Hospital, Wuhan City

[4] The Fourth People’s Hospital of Shanghai, Shanghai City

来源：

Die Radiologie | 2023年 / 63卷 / Suppl 2期

关键词：

Clinical Types; Computer tomography; Coronavirus pneumonia; Ground-glass opacities; Omicron variant;

D O I：

10.1007/s00117-023-01147-2

中图分类号：

学科分类号：

摘要：

Objectives: We investigated different computed tomography (CT) features between Omicron-variant and original-strain SARS-CoV‑2 pneumonia to facilitate the clinical management. Materials and methods: Medical records were retrospectively reviewed to select patients with original-strain SARS-CoV‑2 pneumonia from February 22 to April 22, 2020, or Omicron-variant SARS-CoV‑2 pneumonia from March 26 to May 31, 2022. Data on the demographics, comorbidities, symptoms, clinical types, and CT features were compared between the two groups. Results: There were 62 and 78 patients with original-strain or Omicron-variant SARS-CoV‑2 pneumonia, respectively. There were no differences between the two groups in terms of age, sex, clinical types, symptoms, and comorbidities. The main CT features differed between the two groups (p = 0.003). There were 37 (59.7%) and 20 (25.6%) patients with ground-glass opacities (GGO) in the original-strain and Omicron-variant pneumonia, respectively. A consolidation pattern was more frequently observed in the Omicron-variant than original-strain pneumonia (62.8% vs. 24.2%). There was no difference in crazy-paving pattern between the original-strain and Omicron-variant pneumonia (16.1% vs. 11.6%). Pleural effusion was observed more often in Omicron-variant pneumonia, while subpleural lesions were more common in the original-strain pneumonia. The CT score in the Omicron-variant group was higher than that in the original-strain group for critical-type (17.00, 16.00–18.00 vs. 16.00, 14.00–17.00, p = 0.031) and for severe-type (13.00, 12.00–14.00 vs 12.00, 10.75–13.00, p = 0.027) pneumonia. Conclusion: The main CT finding of the Omicron-variant SARS-CoV‑2 pneumonia included consolidations and pleural effusion. By contrast, CT findings of original-strain SARS-CoV‑2 pneumonia showed frequent GGO and subpleural lesions, but without pleural effusion. The CT scores were also higher in the critical and severe types of Omicron-variant than original-strain pneumonia. © 2023, The Author(s), under exclusive licence to Springer Medizin Verlag GmbH, ein Teil von Springer Nature.

引用

页码：55 / 63

页数：8