Table 1:
Mean ± SD of each of the VASO and DSC parameters stratified by tumor grade
| Grade | VASOTumor, % | VASOContra, % | VASORatio | CBF, mL of Blood per 100 g of Tissue per Minute | CBV, mL of Blood per 100 g of Tissue | rCBV | KTrans, s−1 | VP, % | MTT, s |
|---|---|---|---|---|---|---|---|---|---|
| II | 7.5 ± 3.2 | 5.4 ± 2.9 | 1.5 ± 0.5 | 60.1 ± 25.8 | 4.2 ± 1.9 | 1.4 ± 0.5 | 0.011 ± 0.009 | 2.0 ± 1.2 | 4.2 ± 0.6 |
| III | 41.3 ± 23.6 | 6.3 ± 4.2 | 8.2 ± 5.5 | 197.8 ± 80.7 | 15.3 ± 6.9 | 3.8 ± 1.4 | 0.019 ± 0.018 | 2.9 ± 2.3 | 4.8 ± 1.0 |
| IV | 56.1 ± 32.7 | 4.8 ± 2.3 | 11.6 ± 3.7 | 251.9 ± 160.8 | 17.9 ± 9.5 | 5.7 ± 2.1 | 0.022 ± 0.037 | 3.3 ± 2.7 | 4.5 ± 0.8 |
Note:—VASOTumor indicates vascular-space occupancy values in the tumoral regions; VASOContra, vascular-space occupancy signal intensity in regions contralateral to tumor; VASORatio, ratio between tumor side and contralateral side of the vascular-space occupancy; CBF, cerebral blood flow; CBV, cerebral blood volume; rCBV, relative cerebral blood volume; Ktrans, vascular permeability; Vp, fractional plasma volume; MTT, mean transit time.