Table 2.
Synthetic data. Estimated parameters, and the recall, precision, Dice coefficient, relative volume difference (RVD), average surface distance (ASD), and ICVF root-mean-squared error (RMSE). Format: mean±std [min,max].
| (a) Estimated parameters corresponding to different ground-truth values of the SUV scaling parameter (α). | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dx, Dy, Dz (mm2/day, 10−3) | β (day−1, 10−2) | γ (kPa) | α (mm3/g/day) | |||||||
| Ground truth | 2.00 | 1.00 | 0.00 | 2.00 | 2.00 | Ground truth | 2.50 | 3.00 | 3.50 | 4.00 |
| N-RMSEVD | 1.71±0.37 [1.48,2.26] | 0.89±0.19 [0.73,1.07] | 0.03±0.03 [0.01,0.08] | 2.08±0.83 [0.83,2.50] | 1.98±0.03 [1.95,2.01] | N-RMSEVD | 3.04 | 3.61 | 4.16 | 2.50 |
| N-VD | 1.74±1.10 [0.59,3.24] | 0.83±0.58 [0.22,1.63] | 0.13±0.12 [0.01,0.25] | 2.45±0.10 [2.31,2.50] | 2.35±0.72 [1.97,3.43] | N-VD | 2.69 | 3.61 | 4.19 | 4.17 |
| N-RMSE | 1.50±0.65 [0.65,2.23] | 0.70±0.31 [0.28,1.01] | 0.14±0.22 [0.00,0.46] | 2.08±0.83 [0.83,2.50] | 2.41±1.06 [1.67,3.98] | N-RMSE | 2.50 | 3.61 | 4.17 | 2.50 |
| L-RMSEVD | 1.64±0.38 [1.30,2.18] | 0.86±0.17 [0.73,1.07] | 0.04±0.05 [0.00,0.10] | 2.08±0.83 [0.83,2.50] | 4.47±0.20 [4.22,4.68] | L-RMSEVD | 3.04 | 3.61 | 4.17 | 2.51 |
| (b) Estimated parameters corresponding to different ground-truth values of the force scaling parameter (γ). | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dx, Dy, Dz (mm2/day, 10−3) | β (day−1, 10−2) | α (mm3/g/day) | γ (kPa) | |||||||
| Ground truth | 2.00 | 1.00 | 0.00 | 2.00 | 3.50 | Ground truth | 1.00 | 2.00 | 3.00 | 4.00 |
| N-RMSEVD | 1.62±0.04 [1.58,1.66] | 0.74±0.01 [0.73,0.74] | 0.03±0.02 [0.01,0.06] | 2.49±0.01 [2.48,2.50] | 4.13±0.02 [4.11,4.16] | N-RMSEVD | 0.99 | 1.95 | 2.98 | 3.89 |
| N-VD | 1.52±0.05 [1.47,1.57] | 0.73±0.04 [0.67,0.76] | 0.01±0.01 [0.01,0.02] | 2.50±0.01 [2.49,2.51] | 4.20±0.02 [4.17,4.23] | N-VD | 0.99 | 1.97 | 2.97 | 3.89 |
| N-RMSE | 1.54±0.05 [1.48,1.58] | 0.74±0.02 [0.73,0.77] | 0.01±0.00 [0.00,0.01] | 2.50±0.01 [2.49,2.51] | 4.17±0.01 [4.16,4.17] | N-RMSE | 0.99 | 1.97 | 2.98 | 3.88 |
| L-RMSEVD | 1.89±0.50 [1.57,2.64] | 0.92±0.25 [0.73,1.27] | 0.08±0.13 [0.00,0.27] | 2.51±0.03 [2.50,2.56] | 4.16±0.03 [4.12,4.19] | L-RMSEVD | 2.43 | 4.55 | 5.00 | 4.91 |
| (c) Overall prediction performances. | ||||||
|---|---|---|---|---|---|---|
| Recall (%) | Precision (%) | Dice (%) | RVD (%) | ASD (mm) | RMSE (%) | |
| N-RMSEVD | 98.43±0.81 [97.44,99.91] | 99.67±0.25 [99.22,99.95] | 99.04±0.36 [98.50,99.56] | 1.44±0.57 [0.70,2.16] | 0.04±0.02 [0.02,0.07] | 0.93±0.24 [0.57,1.26] |
| N-VD | 96.52±6.85 [81.02,99.58] | 99.27±0.55 [98.38,99.68] | 97.77±3.90 [88.94,99.54] | 3.14±6.48 [0.24,17.81] | 0.09±0.16 [0.02,0.45] | 1.76±1.28 [0.97,4.55] |
| N-RMSE | 93.65±12.15 [66.17,99.63] | 99.76±0.29 [99.12,99.95] | 96.21±7.32 [79.62,99.38] | 6.26±12.16 [0.52,33.79] | 0.12±0.21 [0.03,0.61] | 2.89±4.96 [0.94,14.14] |
| L-RMSEVD | 97.30±1.39 [94.40,98.90] | 97.89±3.45 [90.18,99.78] | 97.57±1.91 [93.80,99.13] | 2.88±2.62 [0.48,8.35] | 0.19±0.22 [0.08,0.67] | 1.48±1.08 [0.71,3.80] |