Table 4.

Comparison of IVIM parameters with two ROI delineations between benign and malignant groups

	Benign	Malignant	P
S-S ROI IVIM
D	1.39 ± 0.47	0.70 ± 0.14	<  0.0001
f	35.93 ± 16.40	24.80 ± 7.06	0.0052
Da	11.08 ± 3.79	10.87 ± 3.03	0.8402
W-L ROI IVIM
D	1.24 ± 0.35	0.69 ± 0.13	<  0 .0001
f	37.95 ± 10.05	29.36 ± 5.69	0.0010
Da	10.95 ± 2.55	11.54 ± 1.87	0.3782
W-L ROI ADC
ADC600	2.08 ± 0.46	1.28 ± 0.15	<  0.0001
ADC990	1.71 ± 0.40	1.10 ± 0.17	<  0.0001

D (× 10⁻³ mm²/s), f (%), D^a (× 10^− 3 mm²/s)