Table V.

Histogram parameters of different ROIs among the grade II, III and IV gliomas.

				P-value
Parameter	Grade II (n=11)	Grade III (n=9)	Grade IV (n=9)	II vs. III	II vs. IV	III vs. IV
ROI's inhomogeneity
Whole tumor	0.184±0.036	0.337±0.102	0.294±0.083	0.005	0.010	0.597
Solid portion	0.185±0.051	0.288±0.076	0.288±0.107	0.010	0.056	0.987
ROI's median
Whole tumor	1.380±0.238	1.271±0.266	1.600±0.644	0.236
Solid tumor	1.368±0.252	1.172±0.245	1.200±0.191	0.129

ROI, regions of interest.