Table 1 Lung-RADS classification for LDCT scans in Alberta and McGill screening projects
| Â | Alberta | McGill | ||
|---|---|---|---|---|
Frequency | Percent (%) | Frequency | Percent (%) | |
Lung-RADS category 0–Incomplete | 15 | 0.6 | 0 | 0.0 |
Lung-RADS category 1 | 1129 | 48.1 | 20 | 12.7 |
Lung-RADS category 2 | 1007 | 42.9 | 118 | 74.7 |
Lung-RADS category 3 | 60 | 2.6 | 12 | 7.6 |
Lung-RADS category 4A | 62 | 2.6 | 4 | 2.5 |
Lung-RADS category 4B | 64 | 2.7 | 4 | 2.5 |
Lung-RADS category 4X | 12 | 0.5 | 0 | 0.0 |
Modifier S | 374 | 15.9 | 15 | 9.5 |
Total scans | 2349 | Â | 158 | Â |