Table 2.
Diagnostic performance of DECT vs. DE-LB to diagnose intraabdominal hematomas.
| Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | ||
|---|---|---|---|---|---|
| Reader 1 | DE-LB | 90.9% (74.5–97.6) | 100% (85.9–100) | 100% (0.85–1) | 90.1 (74.5–97.6) |
| IM | 100% (85.9–100) | 100% (85.9–100) | 100% (85.9–100) | 100% (85.9–100) | |
| Reader 2 | DE-LB | 88.2% (71.6–96.2) | 96.7% (82.5–99.8) | 96.7% (0.82–0.99) | 88.2% (71.6–96.2) |
| IM | 96.7 (81.5–99.8) | 100% (85.9–100) | 100% (85.9–100) | 96.7 (81.5–99.8) | |
| Reader 3 | DE-LB | 96.7 (81.5–99.8) | 100% (85.9–100) | 100% (85.9–100) | 96.7 (81.5–99.8) |
| IM | 100% (85.9–100) | 100% (85.9–100) | 100% (85.9–100) | 100 (85.9–100) |
Of note: PPV = positive predictive value; NPV = negative predictive value; DE-LB linearly blended dual-energy CT images equal to single-energy CT; IM: dual energy CT-based iodine maps.