| Deep vein | Blinded | Consensus reading | Sensitivity (95% CI) | Specitivity (95% CI) | |||
| Dense vein sign | tp | fp | tn | fn | |||
| SS | 1 | 1 | 0 | 107 | 2 | 50 | 100 |
| LICV | 1 | 1 | 0 | 109 | 0 | 100 | 100 |
| RICV | 1 | 1 | 0 | 109 | 0 | 100 | 100 |
| VG | 1 | 1 | 0 | 109 | 0 | 100 | 100 |
| LBVR | 0 | 0 | 0 | 110 | 0 | - | - |
| RBVR | 0 | 0 | 0 | 110 | 0 | - | - |
| LTSV | 1 | 1 | 0 | 109 | 0 | 100 | 100 |
| RTSV | 1 | 1 | 0 | 109 | 0 | 100 | 100 |
| total | 6 | 6 | 0 | 872 | 2 | 75 (47.8 - 95.7) | 100 (96.7 - 100) |