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Table 2 CT imaging findings of asymptomatic patients (GGO; ground glass opacity, RT-PCR; reverse transcription polymerase chain reaction)

From: Chest CT in COVID-19 pneumonia: correlations of imaging findings in clinically suspected but repeatedly RT-PCR test-negative patients

Group RT-PCR (+) (n = 15) RT-PCR (−) (n = 11)
Lesion patterns
GGO 4 (26.7%) 2 (18.2%)
GGO + Consolidation
 Nodular 3 (20.0%) 2 (18.2%)
 Patchy 7 (46.7%) 7 (63.6%)
 Segmental 0 (0.0%) 1 (9.1%)
Consolidation 2 (13.3%) 1 (9.1%)
Crazy paving pattern 1 (6.7%) 0 (0.0%)
Curvilinear line 1 (6.7%) 4 (36.4%)
Air bubble sign 0 (0.0%) 0 (0.0%)
Halo sign 1 (6.7%) 0 (0.0%)
Reversed halo sign 1 (6.7%) 1 (9.1%)
Air bronchogram 2 (13.3%) 3 (27.3%)
Airway changes 0 (0.0%) 2 (18.2%)
Fibrous stripes 1 (6.7%) 3 (27.3%)
Distribution
Bilateral 11 (73.3%) 11 (100%)
Right upper lobe 5 (33.3%) 10 (90.9%)
Right middle lobe 4 (26.7%) 8 (72.7%)
Right lower lobe 10 (66.7%) 11 (100%)
Left upper lobe 7 (46.7%) 11 (100%)
Left lower lobe 14 (93.3%) 11 (100%)