Table 2:

Comparison of parameters between high- and low-grade tumors^a

Parameters	High-Grade Tumor	Low-Grade Tumor	P Value
D (× 10−3 mm2/s)	0.30–1.50, 0.86, 0.85 ± 0.40	1.21–1.82, 1.54, 1.53 ± 0.21	.0003b
ADC (× 10−3 mm2/s)	0.56–1.61, 0.98, 1.04 ± 0.33	1.24–1.88, 1.62, 1.60 ± 0.21	.0007b
D* (× 10−3 mm2/s)	5.5–41.7, 13.7, 17.7 ± 13.7	4.3–58.4, 12.8, 21.8 ± 18.8	.8337c
f (%)	14.1–37.7, 19.3, 21.7 ± 8.2	3.5–17.4, 6.4, 7.6 ± 4.3	.0003b
MVD (%)	3.1–34.7, 10.2, 12.3 ± 10.5	1.1–13.4, 3.6, 4.3 ± 3.6	.0431c
MIB-1 (%)	15.6–72.6, 50.0, 42.7 ± 22.8	0.1–8.0, 3.4, 3.5 ± 2.8	<.0001b

^aData are expressed as range, median, mean.

^bUnpaired test.

^cMann-Whitney U test.