AI in Oncology
Cancer Survival Prediction
Cox Proportional Hazards
Deep Survival Analysis
import torch.nn as nn
class DeepSurvivalModel(nn.Module):
def __init__(self, input_dim, hidden_dims=[256, 128, 64]):
super().__init__()
layers = []
prev = input_dim
for dim in hidden_dims:
layers.extend([nn.Linear(prev, dim), nn.BatchNorm1d(dim),
nn.ReLU(), nn.Dropout(0.3)])
prev = dim
layers.append(nn.Linear(prev, 1))
self.network = nn.Sequential(*layers)
def forward(self, x):
return self.network(x)
Treatment Response Modeling
Radiomics Features
| Response | RECIST Criteria |
|---|---|
| CR | Complete disappearance |
| PR | >30% decrease |
| SD | <30% change |
| PD | >20% increase |
Tumor Evolution Tracking
Clonal Evolution
Evaluation
- C-index:
- AUROC for response prediction
- Clinical utility via decision curve analysis