Computed Tomography (CT) Imaging Features of Patients with COVID-19: Systematic Review and Meta-Analysis

Table 2

CT imaging features of patients with COVID-19.

CT findings	Number of studies	Number of patients (%)
Patterns of the lesion
Ground-glass opacity with consolidation	60	768 (18%)
Ground-glass opacity	60	2482 (65%)
Consolidation	60	1259 (22%)
Crazy paving pattern	24	575 (12%)
Reversed halo sign	24	146 (1%)
Other signs in the lesion
Interlobular septal thickening	23	691 (27%)
Air bronchogram sign	23	531 (18%)
Distribution
Bilateral	48	3952 (80%)
Unilateral	48	641 (20%)
Right lung	8	48 (62%)
Left lung	8	29 (38%)
Number of lobes involved
One lobe	13	278 (14%)
Two lobes	13	299 (11%)
Three lobes	13	250 (13%)
Four lobes	13	212 (15%)
Five lobes	14	384 (34%)
More than one lobe	14	1145 (76%)
Lobe of lesion distribution
Left upper lobe	14	731 (74%)
Left lower lobe	20	504 (46%)
Right upper lobe	19	455 (40%)
Right middle lobe	15	326 (38%)
Right lower lobe	17	784 (74%)
Other findings
Pleural effusion	60	94 (1.6%)
Lymphadenopathy	60	21 (0.7%)
Pulmonary nodules	22	262 (9%)