Table 2.
Infarct detection
| Sensitivity (R1, R2) | Specificity (R1, R2) | PPV (R1, R2) | NPV (R1, R2) | Accuracy (R1, R2) | IRR (95% CI) | |
|---|---|---|---|---|---|---|
| NCT | 32.4 (33.3, 31.4) | 91.1 (97.8, 84.4) | 82.0 (94.4, 69.6) | 54.2 (56.4, 52.1) | 59.9 (63.5, 56.3) | 0.64 (0.51–0.77) |
| 60 keV | 30.4 (25.5, 35.3) | 85.6 (95.6, 75.6) | 74.4 (86.7, 62.1) | 51.9 (53.1, 50.7) | 56.3 (58.3, 54.2) | 0.71 (0.60–0.83) |
| 70 keV | 36.0 (33.3, 38.7) | 86.7 (93.3, 80.0) | 77.0 (85.0, 69.0) | 54.5 (55.3, 53.7) | 59.9 (61.5, 58.3) | 0.65 (0.52–0.78) |
| 80 keV | 36.0 (38.7, 33.3) | 92.2 (97.8, 86.7) | 84.0 (95.2, 72.7) | 55.7 (58.7, 52.7) | 62.0 (66.7, 57.3) | 0.73 (0.61–0.85) |
| 90 keV | 37.3 (37.3, 37.3) | 94.4 (100.0, 88.9) | 89.1 (100.0, 78.3) | 56.6 (58.4, 54.8) | 63.5 (66.7, 60.4) | 0.78 (0.67–0.89) |
Infarct detection of VMI and conventional CT (NCT) shown in sensitivity (%), specificity (%), PPV (%), NPV (%), accuracy (%), and inter-reader reliability (IRR), with 95% confidence interval (CI). The sensitivity, specificity, PPV, NPV, and accuracy of each individual observer (R1, R2) are provided parenthetically after the pooled value