Summary of predictive performance for normalized and standardized rCBV metrics
| rCBV Metric | Histologic Tumor Content (0%–100%), Pearson Coefficient (P Value) | Tumor Content ≥50%, ROC-AUC (Optimal Threshold) | Tumor Content ≥80%, ROC-AUC (Optimal Threshold) |
|---|---|---|---|
| FTB | |||
| Normalized | r = 0.63 (<.001) | 0.80 (0.72) | 0.77 (0.84) |
| Standardized | r = 0.66 (<.001) | 0.82 (0.56) | 0.80 (0.64) |
| Mean rCBV | |||
| Normalized | r = 0.45 (<.001) | 0.86 (1.558) | 0.75 (1.603) |
| Standardized | r = 0.53 (<.001) | 0.85 (1.187) | 0.78 (1.187) |
| Median rCBV | |||
| Normalized | r = 0.48 (<.001) | 0.87 (1.68) | 0.77 (1.378) |
| Standardized | r = 0.55 (<.001) | 0.86 (1.071) | 0.79 (1.10) |