Table 4. Subgroup Analysis of Diagnostic Performance in the Binary Classification of Colorectal Liver Metastasis.
| Testee | < 10 mm (n = 23) | ≥ 10 mm (n = 76) | |||
|---|---|---|---|---|---|
| Sensitivity (%) (95% CI) | DLLD vs. Reader (P) | Sensitivity (%) (95% CI) | DLLD vs. Reader (P) | Sensitivity between Size Subgroup (P) | |
| DLLD | 56.52 [13/23] (34.67, 76.10) | 89.47 [68/76] (79.56, 94.89) | < 0.001* | ||
| Radiologist | 0.371 | 0.722 | < 0.001* | ||
| Reader-averaged | 47.83 (30.81, 65.36) | 90.79 (83.57, 95.03) | |||
| Reader 1 | 43.48 [10/23] | 88.16 [67/76] | |||
| Reader 2 | 47.83 [11/23] | 93.42 [71/76] | |||
| Reader 3 | 52.17 [12/23] | 90.79 [69/76] | |||
| Resident | 0.132 | 0.593 | < 0.001* | ||
| Reader-averaged | 40.58 (25.75, 57.35) | 91.23 (84.64, 95.15) | |||
| Reader 4 | 56.52 [13/23] | 90.79 [69/76] | |||
| Reader 5 | 43.48 [10/23] | 92.11 [70/76] | |||
| Reader 6 | 21.74 [5/23] | 90.79 [69/76] | |||
*Statistically significant. CI = confidence interval, DLLD = deep learning-based lesion detection algorithm