Table 2 Metrics of inter-reader difference and agreement for femoral and tibial torsion as determined by the Lee and ellipses methods.
From: Artificial intelligence-based automatic assessment of lower limb torsion on MRI
Method | Comparison | Absolute difference [°] | Pearson's r | ICC | ||||
|---|---|---|---|---|---|---|---|---|
R2 | Alg | R2 | Alg | R2 | Alg | |||
Femoral torsion | Lee | R1 | 2.6 (1.9; 3.3) | 3.3 (2.5; 4.0) | 0.984 (< 0.001) | 0.968 (< 0.001) | 0.974 (0.96, 0.99) | 0.963 (0.93; 0.98) |
R2 | na | 3.7 (3.0; 4.5) | na | 0.971 (< 0.001) | na | 0.966 (0.94; 0.98) | ||
Tibial torsion | Ellipses | R1 | 5.0 (4.0; 6.0) | 4.2 (3.2; 5.1) | 0.871 (< 0.001) | 0.904 (< 0.001) | 0.865 (0.77; 0.92) | 0.867 (0.78; 0.92) |
R2 | na | 5.1 (4.1; 6.2) | na | 0.867 (< 0.001) | na | 0.894 (0.82, 0.94) | ||
