Table 2.

Mean ASL and IVIM parameters in HGG and LGG as well as ROC analysis.

		HGG	LGG	Test type	P value	AUC	Cutoff value
Tumor	TBF	102.04 ± 45.55	62.26 ± 18.13	tt	0.011	0.783	63.17
	D ∗	5.1 ± 3.39	2.77 ± 0.69	mw	0.002	0.857	3.5
	D	0.69 ± 0.09	0.81 ± 0.12	tt	0.013	0.818	0.58
	f	0.4 ± 0.11	0.49 ± 0.1	tt	0.039	0.769	0.43
	ADC	0.85 ± 0.09	1.04 ± 0.13	tt	0.001	0.85	0.96
WM	CBF	25.25 ± 3.46	27.64 ± 8.21	mw	0.733
	D ∗	2.5 ± 0.18	2.52 ± 0.29	mw	0.691
	D	0.41 ± 0.02	0.41 ± 0.02	tt	0.801
	f	0.32 ± 0.03	0.29 ± 0.01	mw	0.207
	ADC	0.53 ± 0.03	0.53 ± 0.01	tt	0.857

Significant P values are indicated in bold font.  D ^∗, D, and ADC in 10⁻³ mm²/s. TBF and CBF are in mL/100 g/min. HGG: high grade gliomas, LGG: low grade gliomas, WM: contralateral semioval center. AUC: area under the curve. mw: Mann-Whitney U test, tt: Student's t-test.