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Detection sensitivity (true positive percentage) when considering nodules scored “definitely visible” as true positive responses, averaged over three observers.
| Nodule size | No. of nodules | Tomosynthesis | PA radiography | p value |
|---|---|---|---|---|
| All | 175 | 70%(±5%) | 22%(±4%) | <0.0001 |
| 3−<5 mm | 40 | 53%(±8%) | 7%(±5%) | <0.0001 |
| 5−10 mm | 106 | 71%(±5%) | 20%(±3%) | <0.0001 |
| >10 mm | 29 | 90%(±6%) | 53%(±7%) | 0.004 |
