Table 1.
Performance of the CNN models. Data are presented as mean (SD).
| 2D without DA | 2D with DA | 3D without DA | 3D with DA | |
|---|---|---|---|---|
| Multifidus Left | ||||
| Sørensen-Dice Index | 0.905 (0.021) | 0.902 (0.031) | 0.897 (0.021) | 0.893 (0.035) |
| Jaccard Index | 0.827 (0.034) | 0.823 (0.048) | 0.815 (0.034) | 0.805 (0.050) |
| Conformity Index | 0.789 (0.051) | 0.780 (0.085) | 0.770 (0.053) | 0.751 (0.103) |
| True Positive Rate | 0.905 (0.032) | 0.900 (0.045) | 0.907 (0.035) | 0.892 (0.052) |
| True Negative Rate | 0.999 (0.000) | 0.999 (0.001) | 0.999 (0.001) | 0.999 (0.001) |
| Positive Predictive Value | 0.907 (0.036) | 0.906 (0.038) | 0.890 (0.043) | 0.892 (0.041) |
| Volume Ratio | 1.001 (0.074) | 0.995 (0.064) | 1.022 (0.075) | 1.003 (0.082) |
| Volume ICC2,1 (95% CI) | 0.967 (0.949–0.979) | 0.962 (0.941–0.975) | 0.954 (0.929–0.971) | 0.941 (0.908–0.962) |
| Multifidus Right | ||||
| Sørensen-Dice Index | 0.900 (0.024) | 0.898 (0.028) | 0.891 (0.021) | 0.885 (0.032) |
| Jaccard Index | 0.819 (0.039) | 0.816 (0.044) | 0.804 (0.034) | 0.795 (0.043) |
| Conformity Index | 0.776 (0.061) | 0.770 (0.072) | 0.754 (0.053) | 0.738 (0.074) |
| True Positive Rate | 0.900 (0.038) | 0.901 (0.040) | 0.895 (0.036) | 0.888 (0.040) |
| True Negative Rate | 0.999 (0.001) | 0.999 (0.001) | 0.999 (0.001) | 0.999 (0.001) |
| Positive Predictive Value | 0.901 (0.041) | 0.897 (0.043) | 0.890 (0.040) | 0.885 (0.047) |
| Volume Ratio | 1.000 (0.062) | 1.007 (0.073) | 1.009 (0.075) | 1.007 (0.083) |
| Volume ICC2,1 (95% CI) | 0.941 (0.910 –0.962) | 0.948 (0.920–0.967) | 0.949 (0.922–0.967) | 0.949 (0.922–0.967) |
| Erector Spinae Left | ||||
| Sørensen-Dice Index | 0.931 (0.020) | 0.924 (0.026) | 0.925 (0.019) | 0.918 (0.029) |
| Jaccard Index | 0.871 (0.034) | 0.860 (0.043) | 0.862 (0.032) | 0.848 (0.039) |
| Conformity Index | 0.851 (0.048) | 0.834 (0.069) | 0.838 (0.046) | 0.818 (0.067) |
| True Positive Rate | 0.934 (0.034) | 0.921 (0.039) | 0.930 (0.026) | 0.927 (0.038) |
| True Negative Rate | 0.998 (0.001) | 0.998 (0.002) | 0.997 (0.001) | 0.997 (0.001) |
| Positive Predictive Value | 0.930 (0.030) | 0.929 (0.036) | 0.922 (0.034) | 0.909 (0.034) |
| Volume Ratio | 1.005 (0.056) | 0.993 (0.063) | 1.010 (0.053) | 1.021 (0.061) |
| Volume ICC2,1 (95% CI) | 0.973 (0.958–0.982) | 0.964 (0.945–0.977) | 0.980 (0.968–0.987) | 0.969 (0.949–0.981) |
| Erector Spinae Right | ||||
| Sørensen-Dice Index | 0.928 (0.022) | 0.923 (0.028) | 0.920 (0.019) | 0.916 (0.036) |
| Jaccard Index | 0.867 (0.037) | 0.858 (0.047) | 0.853 (0.033) | 0.843 (0.050) |
| Conformity Index | 0.844 (0.054) | 0.830 (0.069) | 0.826 (0.047) | 0.809 (0.097) |
| True Positive Rate | 0.928 (0.033) | 0.927 (0.035) | 0.920 (0.032) | 0.926 (0.049) |
| True Negative Rate | 0.997 (0.002) | 0.997 (0.003) | 0.998 (0.001) | 0.997 (0.002) |
| Positive Predictive Value | 0.930 (0.033) | 0.921 (0.050) | 0.922 (0.031) | 0.905 (0.037) |
| Volume Ratio | 0.999 (0.059) | 1.011 (0.082) | 0.999 (0.057) | 1.025 (0.071) |
| Volume ICC2,1 (95% CI) | 0.970 (0.954–0.981) | 0.939 (0.906–0.961) | 0.973 (0.958–0.983) | 0.954 (0.926–0.972) |
| Psoas Major Left | ||||
| Sørensen-Dice Index | 0.929 (0.020) | 0.915 (0.041) | 0.930 (0.020) | 0.927 (0.024) |
| Jaccard Index | 0.868 (0.034) | 0.846 (0.066) | 0.870 (0.033) | 0.858 (0.045) |
| Conformity Index | 0.846 (0.048) | 0.810 (0.108) | 0.848 (0.045) | 0.831 (0.073) |
| True Positive Rate | 0.934 (0.027) | 0.904 (0.071) | 0.938 (0.027) | 0.939 (0.025) |
| True Negative Rate | 0.999 (0.000) | 0.999 (0.001) | 0.999 (0.000) | 0.999 (0.001) |
| Positive Predictive Value | 0.925 (0.034) | 0.931 (0.033) | 0.923 (0.035) | 0.910 (0.052) |
| Volume Ratio | 1.012 (0.055) | 0.973 (0.090) | 1.018 (0.057) | 1.036 (0.082) |
| Volume ICC2,1 (95% CI) | 0.990 (0.984–0.994) | 0.954 (0.924–0.971) | 0.981–0.967–0.989) | 0.981 (0.967–0.989) |
| Psoas Major Right | ||||
| Sørensen-Dice Index | 0.932 (0.019) | 0.921 (0.032) | 0.932 (0.020) | 0.923 (0.051) |
| Jaccard Index | 0.874 (0.033) | 0.854 (0.053) | 0.873 (0.034) | 0.856 (0.057) |
| Conformity Index | 0.853 (0.045) | 0.825 (0.079) | 0.852 (0.047) | 0.824 (0.106) |
| True Positive Rate | 0.938 (0.029) | 0.930 (0.036) | 0.937 (0.031) | 0.920 (0.059) |
| True Negative Rate | 0.999 (0.001) | 0.998 (0.001) | 0.999 (0.001) | 0.999 (0.001) |
| Positive Predictive Value | 0.928 (0.036) | 0.913 (0.052) | 0.928 (0.037) | 0.927 (0.043) |
| Volume Ratio | 1.012 (0.059) | 1.023 (0.079) | 1.013 (0.062) | 0.996 (0.090) |
| Volume ICC2,1 (95% CI) | 0.985 (0.977–0.990) | 0.974 (0.960–0.984) | 0.984 (0.975–0.990) | 0.969 (0.952–0.980) |
DA Data augmentation. Bold = Highest measure across all models.