Total tumor regions | Classic tumor regions | |||
Parameter | r | P | r | P |
Maximal and mean value | ||||
T/Bmax vs. rCBVmax | 0.61 | 0.002† | 0.77 | <0.001† |
T/Bmean vs. rCBVmean | 0.29 | 0.185 | 0.38 | 0.079 |
Volume | ||||
Hypoxic tumor volume vs. hypervascularized tumor volume | 0.91 | <0.001† | ||
Hypoxic tumor volume vs. permeable tumor volume | 0.93 | <0.001† | ||
Hypervascularized tumor volume vs. permeable tumor volume | 0.88 | <0.001† |
↵* Pearson correlation coefficients (r) with corresponding P values.
↵† P values are statistically significant.
Hypoxic tumor volume = 18F-FMISO uptake volume thresholded by contralateral 95 centile; hypervascularized tumor volume = high CBV thresholded by contralateral 95 centile; permeable tumor volume = volume of CE region.