Table 2:

P values from pairwise comparison between different tumor grades using the VASO and DSC parameters

Variable	VASO_Tumor	VASO_Contra	VASO_Ratio	CBF	CBV	rCBV	K^trans	V_P	MTT
II vs III	0.0003^*	0.685	0.0002^*	<0.0001^*	<0.0001^*	<0.0001^*	0.248	0.423	0.170
II vs IV	<0.0001^*	0.508	<0.0001^*	0.0006^*	0.0004^*	<0.0001^*	0.858	0.400	0.509
III vs IV	0.194	0.356	0.0098^*	0.442	0.650	0.025^*	0.367	0.787	0.522

Note:—VASO_Tumor indicates vascular-space occupancy values in the tumoral regions; VASO_Contra, vascular-space occupancy signal intensity in regions contralateral to tumor; VASO_Ratio, 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; K^trans, vascular permeability; V_p, fractional plasma volume; MTT, mean transit time.
* Significant differences (P < 0.05, not corrected for multiple comparisons).