Table 1.
Correlations between different relevant polarographically measured parameters of tumor hypoxia, FMISO PET, CDS and FDG PET data based oxygenation values
| ≤2.5 mmHg | ≤5.0 mmHg | ≤10.0 mmHg | Median pO2 | Mean pO2 | FMISOT/M | FMISOT/B | CPD | TP | FDGSUVmax | FDGSUVmean | |
| ≤2.5 mmHg | r = 0.746 | r = 0.476 | r =-0.735 | r = -0.355 | r = 0.302 | r = 0.276 | |||||
| N | 36 | 20 | 20 | 28 | 16 | 20 | 20 | ||||
| ≤5.0 mmHg | r = 0.934 | r = 0.757 | r = 0.478 | r =-0.786 | r =-0.527 | r = 0.161 | r = 0.123 | ||||
| N | 36 | 36 | 20 | 20 | 28 | 16 | 20 | 20 | |||
| ≤10.0 mmHg | r = 0.765 | r = 0.903 | r = 0.703 | r = 0.435 | r =-0.788 | r =-0.604 | r = 0.021 | r = -0.013 | |||
| N | 36 | 36 | 36 | 20 | 20 | 28 | 16 | 20 | 20 | ||
| Mean pO2 | r =-0.610 | r =-0.768 | r =-0.902 | r =-0.589 | r = -0.278 | r = 0.720 | r = 0.607 | r = 0.167 | r = 0.174 | ||
| N | 36 | 36 | 36 | 36 | 20 | 20 | 28 | 16 | 20 | 20 | |
| Mean pO2 | r =-0.485 | r =-0.676 | r =-0.837 | r = 0.923 | r =-0.582 | r = -0.272 | r = 0.576 | r = 0.508 | r = 0.166 | r = 0.161 | |
| N | 36 | 36 | 36 | 36 | 36 | 20 | 20 | 28 | 16 | 20 | 20 |
| FMISOT/M | r = 0.558 | r = 0.551 | r = 0.462 | r =-0.413 | r = -0.376 | ||||||
| N | 22 | 22 | 22 | 22 | 22 | 24 | |||||
| FMISOT/B | r = 0.401 | r = 0.396 | r = 0.342 | r = -0.215 | r = -0.200 | 0.557 | |||||
| N | 22 | 22 | 22 | 22 | 22 | 24 | 24 | ||||
| CPD | r =-0.475 | r =-0.537 | r =-0.662 | r = 0.590 | r = 0.468 | r =-0.503 | r = -0.270 | ||||
| N | 31 | 31 | 31 | 31 | 31 | 18 | 18 | 32 | |||
| TP | r = -0.145 | r = -0.303 | r =-0.592 | r = 0.604 | r = 0.519 | r =-0.509 | r = 0.004 | r = 0.784 | |||
| N | 18 | 18 | 18 | 18 | 18 | 9 | 9 | 18 | 18 | ||
| FDGSUVmax | r = 0.241 | r = 0.101 | r = -0.056 | R = 0.205 | r = 0.219 | r = 0.159 | r = 0.403 | r = 0.105 | r = 0.179 | ||
| N | 22 | 22 | 22 | 22 | 22 | 24 | 24 | 18 | 9 | 24 | |
| FDGSUVmean | r = 0.238 | r = 0.087 | r = -0.062 | R = 0.193 | r = 0.193 | r = 0.108 | r = 0.329 | r = -0.077 | r = 0.103 | r = 0.982 | |
| N | 22 | 22 | 22 | 22 | 22 | 24 | 24 | 18 | 9 | 24 | 24 |
Correlations after exclusion of outliers in the marked right upper columns of the table; relevant correlation marked by bold numbers; r = Pearson coefficient of correlation; N = number of correlated measurements.