Table 5 Performance comparison of models using clinical data, positron emission tomography (PET) data, or dual modality
Data | Model | MAE (days) | C-index | Classification accuracy of 2-year survival status | Classification accuracy of 5-year survival status |
|---|---|---|---|---|---|
Clinical data | CPH | 583 ± 37 | 0.747 ± 0.01 | 0.610 ± 0.05 | 0.868 ± 0.02 |
MLP {64 × 64} | 463 ± 81 | 0.745 ± 0.01 | 0.740 ± 0.02 | 0.913 ± 0.03 | |
PET (MIP images) | ResNet-50 | 423 ± 22 | 0.717 ± 0.01 | 0.724 ± 0.03 | 0.924 ± 0.01 |
PET (whole-body axial images) | ResNet3D-34 | 405 ± 29 | 0.749 ± 0.02 | 0.751 ± 0.02 | 0.928 ± 0.01 |
Clinical data + PET (whole-body axial images) | Multimodal | 399 ± 27 | 0.756 ± 0.01 | 0.743 ± 0.02 | 0.933 ± 0.01 |