Comparison of capture rates of incidental thyroid nodules by methods A and Ba
| Categorization Method | Patients | Total |
|---|---|---|
| Method A (size cutoff) | ||
| ≥10 mm | 57 | 43% |
| <10 mm | 76 | 57% |
| ≥15 mm | 22 | 17% |
| <15 mm | 111 | 83% |
| ≥20 mm | 12 | 9% |
| <20 mm | 121 | 91% |
| Method B (3-tiered system) | ||
| Category 1, 2, or 3 | 31 | 23% |
| Category 1 | 2 | 2% |
| Category 2 | 9 | 7% |
| Category 3 | 20 | 15% |
| Not categorized | 102 | 77% |
| Total | 133 |
↵a Incidental thyroid nodules from retrospective CT review were stratified by size cutoff (method A) and the 3-tiered system (method B). The nodules smaller than the size cutoff and in the “not categorized” group for method B would represent nodules that would not receive work-up if the methods were applied.