Table 2. Comparison of the Imaging Parameters between the Tumor Recurrence and the Treatment-related Change in Patients with Uninterpretable DSC MR Images.
| Reader and final diagnosis | ADC10 (x10-3mm2/s) | IAUC90 |
|---|---|---|
| Reader 1 | ||
| Tumor recurrence | 0.96± 0.14 | 8.64 ± 3.96 |
| Post-treatment effect | 0.99 ± 0.19 | 5.84 ± 2.63 |
| P-value | > .025 | .007 |
| Sensitivity | 65.0% | 80.0% |
| Specificity | 64.0% | 72.0% |
| Reader 2 | ||
| Tumor recurrence | 0.96 ± 0.15 | 8.81 ± 3.84 |
| Post-treatment effect | 0.99 ± 0.21 | 5.95 ± 2.62 |
| P-value | >.025 | .005 |
| Sensitivity | 65.0% | 70.0% |
| Specificity | 52.0% | 84.0% |
Abbreviations: ADC10 = 10th percentile cutoff value of ADC, and IAUC90 = 90th percentile cutoff value of IAUC.
P-values were calculated using the Student t-test
For the multiple comparisons of the imaging parameters, a P-value < .025 indicates a significant difference.