Fig. 2. 5-point scale for coronavirus disease based on CT images.
A. No lesion, score 0. B. Focal GGOs in right lower lobe (arrow) with less than 5% involvement, score 1. C. Patchy GGOs in left lower lobe (arrow) with 5% to 25% involvement, score 2. D. Wedge and strip consolidations in right lower lobe (arrows) with 26% to 49% involvement, score 3. E. GGOs combined with consolidation in right lower lobe (arrow) and middle lobes (arrow) with 50% to 75% involvement, score 4. F. Bilateral diffuse GGOs combined with consolidation with greater than 75% involvement, score 5.