Table 4 Inter-observer classification for perfusion parameters of differently shaped regions of interest and in different areas in glioma patients in the post-treatment group
From: Reliability of dynamic susceptibility contrast perfusion metrics in pre- and post-treatment glioma
| Â | Perfusion metric | Intraclass Correlation | 95%-Confidence interval | P-value | |
|---|---|---|---|---|---|
Lower Bound | Upper Bound | ||||
Whole tumor region; Post-treatment group of patients; Circular ROI | CBF | 0.555 | 0.062 | 0.810 | 0.017 |
CBV | 0.720 | 0.410 | 0.880 |  < 0.001 | |
TTP | 0.331 | -0.409 | 0.715 | 0.143 | |
Tumor hotspot; Post-treatment group of patients; Circular ROI | CBF | -0.260 | -1.653 | 0.462 | 0.700 |
CBV | -0.389 | -1.926 | 0.407 | 0.776 | |
TTP | -0.218 | -1.566 | 0.480 | 0.671 | |
Peritumoral region; Post-treatment group of patients; Circular ROI | CBF | -0.014 | -1.137 | 0.567 | 0.497 |
CBV | -0.048 | -1.207 | 0.553 | 0.529 | |
TTP | -0.023 | -1.155 | 0.563 | 0.505 | |
Whole tumor region; Post-treatment group of patients; Polygonal ROI | CBF | -0.021 | -1.150 | 0.564 | 0.503 |
CBV | 0.083 | -0.932 | 0.609 | 0.397 | |
TTP | 0.034 | -1.034 | 0.588 | 0.448 | |
Tumor hotspot; Post-treatment group of patients; Polygonal ROI | CBF | -0.025 | -1.158 | 0.563 | 0.506 |
CBV | -0.087 | -1.290 | 0.563 | 0.565 | |
TTP | 0.102 | -0.891 | 0.617 | 0.377 | |
Peritumoral region; Post-treatment group of patients; Polygonal ROI | CBF | -0.086 | -1.288 | 0.536 | 0.564 |
CBV | -0.032 | -1.174 | 0.559 | 0.514 | |
TTP | -0.032 | -1.173 | 0.560 | 0.513 | |