Results of the readings–sinus
| Sinus | Blinded Reading | Consensus Reading | Interobserver Agreement (κ values) | Sensitivity (95% CI)* | Specificity (95% CI)* | |||
|---|---|---|---|---|---|---|---|---|
| Cord Sign | tp | fp | tn | fn | ||||
| SSS | 45 | 36 | 9 | 138 | 24 | 0.70 | 60 (51.4–66.3) | 93.9 (90.4–96.4) |
| ISS | 8 | 0 | 8 | 196 | 3 | 0.84 | 0 (0–53.3) | 96.1 (96.1–96.9) |
| LTS | 18 | 11 | 7 | 146 | 43 | 0.76 | 20.4 (13.3–26.4) | 95.4 (92.9–97.5) |
| RTS | 20 | 8 | 12 | 171 | 16 | 0.8 | 33.3 (19.3–48.4) | 93.4 (91.6–95.4) |
| LSS | 14 | 7 | 7 | 164 | 29 | 0.78 | 19.4 (10.8–28.1) | 95.9 (94.1–97.7) |
| RSS | 11 | 1 | 10 | 188 | 8 | 0.84 | 11.1 (2–39.1) | 94.9 (94.5–96.2) |
| Total | 116 | 63 | 53 | 1003 | 123 | 0.80 | 33.9 (28.8–38.8) | 95 (94.1–95.8) |
Note:—ISS indicates inferior sagittal sinus.
* Data are given in percentages.