Table 4.
Segmentation performance evaluation between benign and malignant tumors in DSC(%).
| Methods | Mask-RCNN | U-Net | ||
|---|---|---|---|---|
| Benign | Malignant | Benign | Malignant | |
| Baseline | 80.33 ± 4.997 | 68.22 ± 8.047 | 65.66 ± 2.962 | 63.60 ± 3.767 |
| RefMeth_1 | 78.81 ± 5.435 | 71.51 ± 3.566 | 66.16 ± 4.266 | 63.84 ± 6.313 |
| RefMeth_2 | 80.76 ± 3.115 | 71.85 ± 5.060 | 67.56 ± 3.148 | 62.20 ± 4.988 |
| RefMeth_3 | 81.49 ± 5.465 | 74.80 ± 3.377 | 66.74 ± 6.118 | 59.08 ± 1.969 |
| RefMeth_4 | 84.00 ± 4.938 | 77.48 ± 7.164 | 68.23 ± 5.617 | 64.73 ± 4.333 |
| PropMeth_1 | 88.07 ± 1.909 | 81.16 ± 1.681 | 79.18 ± 3.699 | 74.22 ± 4.886 |
| PropMeth_2 | 87.64 ± 2.100 | 81.13 ± 2.234 | 79.52 ± 4.384 | 77.13 ± 2.542 |
| PropMeth_3 | 87.89 ± 1.759 | 84.58 ± 1.510 | 79.93 ± 3.434 | 76.25 ± 4.010 |
In addition, a Wilcoxon signed-rank test was conducted to test the statistical significance of the DSC results of different methods. A p-value less than 0.05 is considered as statistical significance. The results are shown in Table 5 .