Table 3.
Measured side differences in muscle and adipose tissue cross-sectional areas (CSA) between manual und U-Net segmentation techniques of thigh MRI (33% distal–proximal) in OAI participants with the same radiographic disease stage in both knees, but unilateral frequent pain; painful knee vs. painful knee
| Painful knee | Painless knee | Differences painful vs. painless | |||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean% | SD% | p value | |
| Manual | |||||||
| Quadriceps | 50.79 | 12.26 | 53.79 | 13.45 | − 5.73 | 7.92 | < 0.001 |
| Hamstrings | 33.27 | 7.97 | 33.67 | 7.93 | − 1.21 | 8.03 | 0.292 |
| Adductors | 14.15 | 5.61 | 14.33 | 5.8 | − 1.24 | 22.6 | 0.71 |
| SCF | 77.81 | 38.34 | 76.66 | 37.88 | − 1.38 | 6.91 | 0.158 |
| IMF | 16.88 | 3.9 | 17.19 | 4.42 | 1.84 | 10.96 | 0.137 |
| Automated | |||||||
| Quadriceps | 51.83 | 12.32 | 54.83 | 13.72 | − 5.63 | 7.64 | < 0.001 |
| Hamstrings | 33.76 | 7.93 | 34.09 | 7.92 | − 0.98 | 6.56 | 0.299 |
| Adductors | 13.92 | 5.21 | 14.15 | 5.76 | − 1.62 | 23.29 | 0.63 |
| SCF | 78.83 | 39.43 | 78.01 | 39.25 | − 0.96 | 6.28 | 0.137 |
| IMF | 14.58 | 3.54 | 14.77 | 3.64 | 1.23 | 10.63 | 0.435 |
Bold signifies p < 0.001