Table 4.
Perfusion-Weighted Imaging Parameters, Normalized CBV (nCBV), Normalized Peak Height (nPH), Normalized Recirculation Factor (nRF), and Recovery (%Rec) at the Time of Pre-RT.
| PFS <12 mo | PFS >12 mo | HR (95% CI) | p-Value | ||
|---|---|---|---|---|---|
| Median nCBV | CEL | 1.40 ± 0.79 | 1.26 ± 0.67 | >0.05 | |
| T2ALL | 1.13 ± 0.45 | 0.92 ± 0.27 | 2.414 [1.147 5.082] | 0.020 | |
| NEL | 1.06 ± 0.39 | 0.89 ± 0.27 | 2.350 [1.022 5.403] | 0.044 | |
| 90th nCBV | CEL | 2.65 ± 1.41 | 2.36 ± 0.11 | >0.05 | |
| T2ALL | 2.30 ± 1.09 | 1.95 ± 0.65 | >0.05 | ||
| NEL | 2.01 ± 0.75 | 1.76 ± 0.55 | >0.05 | ||
| Median nPH | CEL | 1.49 ± 0.78 | 1.34 ± 0.63 | >0.05 | |
| T2ALL | 1.13 ± 0.41 | 0.91 ± 0.26 | 3.007 [1.401 6.542] | 0.005 | |
| NEL | 1.04 ± 0.37 | 0.88 ± 0.25 | 2.481 [1.112 5.533] | 0.026 | |
| 90th nPH | CEL | 2.99 ± 1.53 | 2.55 ± 1.05 | >0.05 | |
| T2ALL | 2.61 ± 1.26 | 2.14 ± 0.71 | 1.294 [0.998 1.678] | 0.052 | |
| NEL | 2.27 ± 1.01 | 1.97 ± 0.60 | >0.05 | ||
| Median nRF | CEL | 1.23 ± 0.36 | 1.20 ± 0.36 | >0.05 | |
| T2ALL | 1.09 ± 0.14 | 0.98 ± 0.14 | 7.101 [1.090 46.281] | 0.040 | |
| NEL | 1.08 ± 0.16 | 0.96 ± 0.12 | 8.352 [1.357 51.408] | 0.022 | |
| 90th nRF | CEL | 2.14 ± 0.49 | 2.08 ± 0.57 | >0.05 | |
| T2ALL | 1.77 ± 0.46 | 1.62 ± 0.38 | >0.05 | ||
| NEL | 1.68 ± 0.49 | 1.53 ± 0.30 | >0.05 | ||
| Median %Rec | CEL | 92 ± 6 | 89 ± 15 | >0.05 | |
| T2ALL | 96 ± 5 | 98 ± 5 | >0.05 | ||
| NEL | 97 ± 5 | 99 ± 4 | >0.05 | ||
| 10th %Rec | CEL | 68 ± 15 | 65 ± 21 | >0.05 | |
| T2ALL | 79 ± 11 | 77 ± 18 | >0.05 | ||
| NEL | 81 ± 11 | 81 ± 13 | >0.05 |
HR, hazard ratio; CI, confidence interval.