Table 3.
Summary of the main radiological and metabolic features of patients with interstitial pneumonia detected during “COVID” period (n = 284)
| n (%) | Mean (range) | |
|---|---|---|
| CT features | ||
| Laterality | ||
| Monolateral lung abnormalities | 139 (49%) | |
| Right side | 71 | |
| Left side | 68 | |
| Bilateral lung abnormalities | 145 (51%) | |
| Number of lobes involved | ||
| 1 | 32 (11%) | |
| 2 | 67 (24%) | |
| > 2 | 185 (65%) | |
| Localization | ||
| Right lung | 216 | |
| RUL:RML:RLL | 158:100:198 | |
| Left lung | 213 | |
| LUL:Li:LLL | 146:99:208 | |
| Alterations pattern | ||
| Only GGO | 148 (52%) | |
| Only consolidation areas | 14 (5%) | |
| GGO + consolidation areas | 117 (41%) | |
| Other | 5 (2%) | |
| Distribution of lesions in lung | ||
| Peripheral | 200 (70%) | |
| Central | 19 (7%) | |
| Peripheral + central | 65 (23%) | |
| Bronchial wall thickening | 68 (24%) | |
| Crazy paving pattern | 118 (42%) | |
| Air bronchogram sign | 109 (38%) | |
| Pleural effusion | 44 (15%) | |
| Enlarged mediastinal lymph nodes | 169 (59.5%) | |
| PET features | ||
| FDG-positive lung alterations | 169 (59%) | |
| SUVmax lung alterations | 4.1 (0.9–14.6) | |
| SUVmean lung alterations | 2.6 (0.7–10) | |
| Lesion to liver SUVmax ratio lung alterations | 1.4 (0.3–4.7) | |
| Lesion to blood pool SUVmax ratio lung alterations | 1.9 (0.3–6.8) | |
| FDG-positive mediastinal lymph nodes | 106 (37%) | |
CT, computed tomography; PET, positron emission tomography; RUL, right upper lobe; RML, right medium lobe; RLL, right lower lobe; LUL, left upper lobe; Li, lingula; LLL, left lower lobe; GGO, ground-glass opacity; SUV, standardized uptake value