Table 1.
Protocol for scoring CT chest.
| CT Scoring Protocol | |||
|---|---|---|---|
| Zone 1 | Slice 1 Left | Slice 1 Right | 12 Total Sections |
| Slice 2 Left | Slice 2 Right | ||
| Zone 2 | Slice 3 Left | Slice 3 Right | |
| Slice 4 Left | Slice 4 Right | ||
| Zone 3 | Slice 5 Left | Slice 5 Right | |
| Slice 6 Left | Slice 6 Right | ||
| Abnormal Findings: | Score 0=No involvement | 16 Point Maximum Per Section | |
| Septal Thickening | Score 1=1–25% | ||
| Honeycombing | Score 2=26–50% | ||
| Ground-Glass Opacities | Score 3=51–75% | ||
| Bronchiectasis | Score 4=76–100% | ||
| 192 Total Maximum Points |
Zone 1 is above the aortic arch. Zone 2 is between the aortic arch and the inferior pulmonary veins. Zone 3 is below the inferior pulmonary veins.