Table 2:
Comparison of diagnostic accuracy of the 3 observersa
| Value | Global (n = 170) | SCC-Related (n = 107) | Lymphoma-Related (n = 40)b | Benign Conditions (n = 23) |
|---|---|---|---|---|
| 80-kVp image series | ||||
| Sensitivity | 94.8% (93.5%–95.4%) | 94.8% (91.4%–97.2%) | 95.0% | 94.3% (88.9%–100.0%) |
| Specificity | 93.0% (91.9%–95.1%) | 89.1% (86.5%–91.7%) | 100.0% | 93.3% (80.0%–100.0%) |
| PPV | 95.9% (95.3%–97.2%) | 94.3% (93.1%–95.8%) | 100.0% | 98.2% (94.7%–100.0%) |
| NPV | 91.1% (89.1%–92.1%) | 90.1% (84.6%–94.3%) | 95.2% | 85.7% (71.4%–100.0%) |
| 120-kVp image series | ||||
| Sensitivity | 94.8% (92.6%–96.3%) | 95.3% (91.4%–97.2%) | 95.0% | 92.5% (88.9%–94.4%) |
| Specificity | 93.0% (91.9%–95.1%) | 89.1% (86.5%–91.7%) | 100.0% | 93.3% (80.0%–100.0% |
| PPV | 95.9% (95.3%–97.2%) | 94.4% (93.2%–95.8%) | 100.0% | 98.1% (94.4%–100.0%) |
| NPV | 91.1% (87.7%–93.5% | 91.0% (84.6%–94.3%) | 95.2% | 79.0% (71.4%–85.7%) |
a
Values are given as mean (range).
b
No interobserver differences, therefore no ranges, are given.