Table 4.
Performance comparison of four different feature selection methods: Baseline (no feature selection), paired t-test, SLR, and DTFS.
| Modality | Method | ACC % |
SEN % |
SPE % |
AUC | p-value |
|---|---|---|---|---|---|---|
| Multi-modality (MRI+CSF+PET) | Baseline | 69.4 | 64.3 | 73.5 | 0.736 | <0.0001 |
| t-test | 72.3 | 73.1 | 71.7 | 0.760 | <0.0010 | |
| SLR | 73.1 | 79.3 | 68.3 | 0.824 | <0.0010 | |
| DTFS | 76.5 | 81.2 | 71.9 | 0.836 | - | |
| MRI | Baseline | 63.3 | 59.8 | 66.0 | 0.700 | <0.0001 |
| t-test | 65.3 | 63.1 | 66.9 | 0.699 | <0.0010 | |
| SLR | 67.2 | 63.4 | 70.2 | 0.741 | >0.0500 | |
| DTFS | 69.4 | 72.0 | 67.3 | 0.743 | - | |
| PET | Baseline | 67.0 | 59.6 | 72.7 | 0.732 | >0.0500 |
| t-test | 66.6 | 69.2 | 64.5 | 0.718 | <0.0500 | |
| SLR | 67.7 | 67.9 | 67.6 | 0.714 | <0.0500 | |
| DTFS | 68.7 | 76.4 | 59.1 | 0.733 | - |