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Semi-quantitative Scoring Method for Lung Attenuation Adapted from Warrick et al [27]
| Abnormality | Grading for Each Abnormality | Anatomical Regions Scored (Lobes scored independently) | |
|---|---|---|---|
| % Disease Extent | Score | ||
| Parenchymal band or linear opacity | 0 | 0 | Left cranial; cranial segment, caudal segment |
| Hazy or ground-glass opacity | 1-25% | 1 | Right cranial |
| 26-50% | 2 | Right middle | |
| Complete attenuation or consolidation | 51-75% | 3 | Left caudal |
| >75% | 4 | Right caudal | |
| Right accessory | |||
