Table 1 COVID-19 imaging reporting and data system classification
COVID-Rads Grade | CT findings | Description | Level of suspicion |
|---|---|---|---|
0 | Normal CT chest | No findings | Low |
1 | Atypical findings being (inconsistent with COVID-19). | Pleural effusion, cavity, lymphadenopathy, halo sign, a tree in bud sign, bronchiectasis, pulmonary emphysema, pulmonary fibrosis, pneumothorax, or pericardial effusion. | Low |
2A | Fairly typical findings. | Single GGO, focal pleural thickening, consolidation without GGO, vascular enlargement, air bronchogram, bronchial wall thickening, white lung stage, or parenchymal fibrotic bands. | Moderate |
2B | Combination of atypical findings with typical/ fairly typical findings. | Moderate | |
3 | Typical findings | Multifocal GGO, GGO with superimposed consolidation, consolidation predominant, crazy paving appearance, linear opacities, or melted sugar sign. | High |