Table 1 Distribution of patients according to “Prevalence of HRCT findings”
Prevalence of HRCT findings | Asymptomatic COVID-19 patients | |||
|---|---|---|---|---|
Initially screened | Recovered | |||
N (60) | % | N (60) | % | |
* Unilateral versus bilateral lung involvement | ||||
Unilateral (one lung involved) | 18 | 30% | Not detected | |
Bilateral (both lungs involved) | 42 | 70% | 60 | 100% |
* Size and extension of the lesions | ||||
Less than 3 cm | 42 | 70% | 10 | 16.7% |
Peripheral (> 3 cm longest dimension but < 3 cm extension from pleural surface). | 15 | 25% | 42 | 70% |
Peripheral (> 3 cm extension from pleural surface but < 50% of lobar involvement) or peri-bronchial (> 3 cm) | 3 | 5% | 6 | 10% |
Diffuse lobular pattern (extending proximally > 3 cm from pleural surface and > 50% of lobar involvement) | Not detected | 2 | 3.3% | |
* Number of the lesions (excluding diffuse lobar pattern) | ||||
Less than 3 | 24 | 40% | Not found | |
More than 3 | 36 | 60% | 60 | 100% |
* HRCT findings | ||||
| 46 | 76.7% | 36 | 60% |
“Atoll sign” (starting organization) | 6 | 10% | 24 | 40% |
“Air bubble sign” | 1 | 1.7% | 4 | 6.7% |
Secondary fibrosis | 6 | 10% | 20 | 33.3% |
“Crazy paving pattern” | 6 | 10% | Not found | |
| 14 | 23.3% | 24 | 40% |
“Curvilinear” consolidations or fibro-consolidations | 2 | 3.3% | 24 | 40% |
* Associated signs/findings | ||||
Hydro-pneumothorax | Not detected | 1 | 1.7% | |
Bronchial wall thickening and traction bronchiectasis | Not detected | 1 | 1.7% | |
GGO nodules or patches
GGOs mixed with consolidative changes