Table 1.
Dataset demographics
| Test dataset | |
|---|---|
| Male | 153 |
| Female | 159 |
| Mean age ± standard deviation (years ± SD) | 61.6 ± 11.4 |
| Total no. of radiographs | 312 |
| Total no. of cancers | 59 |
| Size | |
| Average ± SD [mm] | 17.9 ± 6.28 |
| ≦10 mm | 7 (12%) |
| 11–20 mm | 33 (56%) |
| 21–30 mm | 19 (32%) |
| Laterality | |
| Right | 39 (66%) |
| Left | 20 (34%) |
| Location | |
| Upper | 23 (39%) |
| Middle | 31 (53%) |
| Lower | 5 (8%) |
| Overlap | |
| Heart | 2 (3%) |
| Clavicle | 6 (10%) |
| Diaphragm | 1 (2%) |
| Hilar vessels | 3 (5%) |
| Manufacturer (% radiographs with cancer) | |
| FUJIFILM | 6/89 (7%) |
| KONICA | 31/113 (27%) |
| Philips | 22/110 (20%) |
Data are n unless otherwise noted. SD: standard deviation