Table 3:
Individual reader performance results
| Sensitivity (95% CI) | Specificity (95% CI) | Accuracy (95% CI) | |
|---|---|---|---|
| Reader 1 | |||
| CAD− | 55.6% (5/9) (26.7%–81.1%) | 76.9% (30/39) (61.7%–87.4%) | 72.9% (35/48) (59.0%–83.4%) |
| CAD+ | 77.8% (7/9) (45.3%–93.7%) | 66.7% (26/39) (51.0%–79.4%) | 68.8% (33/48) (54.7%–80.1%) |
| Reader 2 | |||
| CAD− | 66.7% (6/9) (35.4%–87.9%) | 74.4% (29/39) (58.9%–85.4%) | 72.9% (35/48) (59.0%–83.4%) |
| CAD+ | 88.9% (8/9) (56.5%–98.0%) | 79.5% (31/39) (64.5%–89.2%) | 81.3% (39/48) (68.1%–89.8%) |
| Reader 3 | |||
| CAD− | 77.8% (7/9) (45.3%–93.7%) | 84.6% (33/39) (70.3%–92.8%) | 83.3% (40/48) (70.4%–91.3%) |
| CAD+ | 100% (9/9) (70.1%–100.0%) | 79.5% (31/39) (64.5%–89.2%) | 83.3% (40/48) (70.4%–91.3%) |
| Reader 4a | |||
| CAD− | 66.7% (6/9) (35.4%–87.9%) | 82.1% (32/39) (67.3%–91.0%) | 79.2% (38/48) (65.7%–88.3%) |
| CAD+ | 77.8% (7/9) (45.3%–93.7%) | 76.9% (30/39) (61.7%–87.4%) | 77.1% (37/48) (63.5%–86.7%) |
| Reader 5 | |||
| CAD− | 88.9% (8/9) (56.5%–98.0%) | 79.5% (31/39) (64.5%–89.2%) | 81.3% (39/48) (68.1%–89.8%) |
| CAD+ | 77.8% (7/9) (45.3%–93.7%) | 74.4% (29/39) (58.9%–85.4%) | 75% (36/48) (61.2%–85.1%) |
| Reader 6 | |||
| CAD− | 66.7% (6/9) (35.4%–87.9%) | 79.5% (31/39) (64.5%–89.2%) | 77.1% (37/48) (63.5%–86.7%) |
| CAD+ | 77.8% (7/9) (45.3%–93.7%) | 76.9% (30/39) (61.7%–87.4%) | 77.1% (37/48) (63.5%–86.7%) |
a
General radiologist, all other readers are neuroradiologists.