CT features of coronavirus disease 2019 versus bacterial pneumonia

XIANG Gang; XU Feng; WEN Ya

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CT features of coronavirus disease 2019 versus bacterial pneumonia

更新时间：2023-04-14

- CT features of coronavirus disease 2019 versus bacterial pneumonia
- Journal of Southwest Medical University Vol. 43, Issue 5, Pages: 503-506(2020)
- 作者机构：
  
  1. 西南医科大学附属中医医院放射影像科
  2. 广安区人民医院放射影像科
- 作者简介：
- 基金信息：
- DOI：
  CLC： R563.1;R816.41
- Published：2020，
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[1]向刚,徐凤,文亚.新型冠状病毒肺炎与细菌肺炎CT特征分析[J].西南医科大学学报,2020,43(05):503-506+518.

XIANG Gang, XU Feng, WEN Ya. CT features of coronavirus disease 2019 versus bacterial pneumonia. [J]. Journal of Southwest Medical University 43(5):503-506(2020)
[1]向刚,徐凤,文亚.新型冠状病毒肺炎与细菌肺炎CT特征分析[J].西南医科大学学报,2020,43(05):503-506+518. DOI：

XIANG Gang, XU Feng, WEN Ya. CT features of coronavirus disease 2019 versus bacterial pneumonia. [J]. Journal of Southwest Medical University 43(5):503-506(2020) DOI：

摘要

目的:通过对新型冠状病毒肺炎（COVID-19）与细菌性肺炎患者的胸部CT影像特点进行对比分析

提高临床工作中两种肺炎鉴别能力。方法:回顾性分析40例COVID-19病例CT资料

收集本院40例2017年1月1日至2020年3月1日细菌性肺炎CT资料进行对比分析。结果:COVID-19肺炎小叶内间隔增厚占比82.5%

明显高于细菌性肺炎10%（P <0.001）;小叶中心结节及树芽征占比5%、7.5%

明显低于细菌性肺炎20%、25%（P <0.05）。COVID-19肺段占比8.2±2.7

细菌性肺炎占比4.7±1.8

病灶面积评分分别为6.2±1.3、7.6±2.4

下肺层面占比较高。胸膜下区病灶分布比例分别为65%、20%;两者密度特征单发磨玻璃密度（groumd gluss opacity

GGO）分别为32.5%、12.5%

多发GGO分别为37.5%、15%具有统计学意义（P <0.05）。结论:COVID-19肺炎以胸膜下区分布为主

累及肺段较多;COVID-19肺炎患者小叶内间隔增厚、GGO明显高于细菌性肺炎

而小叶中心结节、树芽征明显低于细菌性肺炎。

Abstract

Objective: To compare the features of chest CT findings between coronavirus disease 2019（COVID-19） and bacterial pneumonia

and to improve the ability to differentiate between the two diseases in clinical practice.Methods: We retrospectively analyzed the CT data of 40 cases of COVID-19

and compared them with the CT findings of 40 patients with bacterial pneumonia who attended our hospital from January 1

2017 to March 1

2020. Results: COVID-19 showed significantly more frequent intralobular septal thickening（82.5% vs 10%

P < 0.001） and significantly less frequent centrilobular nodules（5% vs 20%

P < 0.05） and tree-in-bud sign（7.5% vs 25%

P <0.05） compared with bacterial pneumonia. The proportions of lung segment involvement were 8.2 ± 2.7 and 4.7 ± 1.8 for COVID-19 and bacterial pneumonia

respectively. The involvement area score was 6.2 ± 1.3 for COVID-19 and7.6 ± 2.4 for bacterial pneumonia

and there was a predominance in the inferior lobes. The subpleural area was involved in 65% and 20% of patients with COVID-19 and bacterial pneumonia

respectively. Compared with bacterial pneumonia

COVID-19 had significantly higher percentages of single ground glass opacity（GGO）（32.5% vs 12.5%

P < 0.05） and multiple GGOs（37.5% vs 15%

P < 0.05）. Conclusion: COVID-19 mainly involves the subpleural area

and frequently affects the lung segments. It shows more frequent intralobular septal thickening and GGO but less frequent centrilobular nodules and tree-in-bud sign than bacterial pneumonia.

关键词

新型冠状病毒肺炎细菌性肺炎胸部CT鉴别诊断

Keywords

Coronavirus disease 2019Bacterial pneumoniaChest CTDifferential diagnosis

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