Table 6. UIP Score Defined by CT Findings with Emphasis on Presence and Extent of TB/Bronchiolectasis (Hatabu and Lee).
ATS/ERS/JRS/ALAT | ILA [10] | TBI [13] | TB | UIP Score |
---|---|---|---|---|
Typical UIP | 3 | +++ (severe) and/or honeycombing | 4 | |
Probable UIP (82.4% UIP/probable UIP) [45] | Subpleural fibrotic | 2 | + or ++ (mild to moderate) | 3 |
Indeterminate UIP (54.2% UIP/probable UIP) [45] | Subpleural non-fibrotic | 1 | Bronchiolectasis only | 2 |
Subpleural non-fibrotic | 0 | - (none) | 1 | |
Inconsistent | Non-subpleural | 0 |
ALAT = Latin American Thoracic Association, ATS = American Thoracic Society, ERS = European Respiratory Society, ILA = interstitial lung abnormality, JRS = Japanese Respiratory Society, TBI = traction bronchiectasis index, UIP = usual interstitial pneumonia