Table 3.
Intra- and inter-rater reliability ICCs with 95% confidence intervals (CIs) for manual MRI and 3D US segmentations, along with repeated MRI and 3D US registrations and trimmings. The MSD, HD, and DSC values ± SD for all comparisons are also presented.
| ICC (95% CI) | P value | MSD [mm] | HD [mm] | DSC [%] | ||
|---|---|---|---|---|---|---|
| Intra-rater (n = 5) | ||||||
| MRI (rater 1) | 0.97 (0.79, 1.00) | 0.001 | 0.218 ± 0.109 | 2.88 ± 1.37 | 87.3 ± 2.8 | |
| MRI (rater 2) | 0.90 (0.25, 0.99) | 0.002 | 0.499 ± 0.275 | 6.66 ± 2.76 | 83.5 ± 4.6 | |
| 3D US (rater 1) | 1.00 (0.98, 1.00) | <0.0001 | 0.126 ± 0.024 | 1.76 ± 0.35 | 92.9 ± 0.2 | |
| 3D US (rater 2) | 0.98 (0.84, 1.00) | 0.0003 | 0.256 ± 0.143 | 3.70 ± 2.23 | 88.1 ± 2.6 | |
| Inter-rater (n = 25) | ||||||
| MRI | 0.83 (0.48, 0.94) | <0.0001 | 0.274 ± 0.122 | 3.51 ± 1.77 | 83.1 ± 3.6 | |
| 3D US | 0.96 (0.90, 0.98) | <0.0001 | 0.243 ± 0.133 | 2.89 ± 1.72 | 86.4 ± 3.1 | |
| Registration & trimming (n = 5) | ||||||
| Single rater | 1.00 (0.99, 1.00) | <0.0001 | 0.101 ± 0.090 | 1.72 ± 0.94 | 94.3 ± 4.4 | |