Table 3. Linear regression analysis between experimental and predicted local displacements for a tissue modulus Et = 12.0GPa.
Data are reported for predictions along the three Cartesian directions (X and Y in a transverse plane, Z in the axial direction) for the individual specimens and for pooled data.
| Specimen ID | Direction | Nr. Comparison points (%) | Slope | Intercept [μm] | R2 | RMSE [μm] | RMSE% | MaxError [μm] | CC1 |
|---|---|---|---|---|---|---|---|---|---|
| S#1 | UX | 213 (98.6%) | 1.05 | 0.33 | 0.99 | 1.35 | 3.99 | 6.36 | 0.99 |
| UY | 215 (99.5%) | 0.98 | 1.12 | 0.97 | 1.64 | 5.25 | 7.42 | 0.98 | |
| UZ | 215 (99.5%) | 0.99 | 3.25 | 0.99 | 2.78 | 0.70 | 9.20 | 0.99 | |
| S#2 | UX | 205 (96.7%) | 1.02 | 0.35 | 0.97 | 2.31 | 2.47 | 12.56 | 0.98 |
| UY | 209 (98.6%) | 1.00 | -1.96 | 0.99 | 2.31 | 1.25 | 9.48 | 0.99 | |
| UZ | 207 (97.6%) | 0.99 | 1.30 | >0.99 | 2.93 | 1.11 | 10.79 | 1.00 | |
| S#3 | UX | 130 (99.2%) | 0.71 | -8.00 | 0.87 | 3.11 | 5.20 | 12.23 | 0.87 |
| UY | 130 (99.2%) | 0.95 | 3.85 | 0.96 | 3.26 | 2.72 | 9.92 | 0.98 | |
| UZ | 131 (100%) | 1.05 | -22.10 | 0.91 | 11.88 | 5.08 | 45.86 | 0.90 | |
| S#4 | UX | 226 (98.7%) | 1.05 | -1.06 | 0.98 | 1.25 | 3.19 | 4.50 | 0.99 |
| UY | 226 (98.7%) | 1.09 | -1.12 | 0.99 | 0.97 | 2.05 | 5.05 | 0.98 | |
| UZ | 225 (98.3%) | 0.99 | 4.56 | 0.99 | 1.69 | 0.57 | 9.33 | 0.99 | |
| Pooled | UX | 774 (98.2%) | 0.99 | 1.04 | 0.99 | 2.55 | 2.74 | 12.56 | 1.00 |
| UY | 780 (99.0%) | 0.98 | 1.46 | >0.99 | 2.18 | 1.18 | 9.92 | 1.00 | |
| UZ | 778 (98.7%) | 1.04 | -10.21 | 0.99 | 6.96 | 1.74 | 45.86 | 0.99 |
1Concordance Correlation Coefficient according to [43].