Table 2. Summary of healthy liver IVIM studies with Dslow and PF value in the mid 50% data (middle two quartile) distribution of reported value.

Paper	Subject number	PF (%)	Dslow (10-3 mm2/s)	Dfast (10-3 mm2/s)	Field strength (T)	Breath compensation	b value distribution (s/mm2)	Post-processing algorithm
Leporq et al., 2015 (19)	25	21.90±4.90	1.08±0.07	79.00±23.50	3.0	FB	0, 10, 80, 800	ROI analysis and nonlinear least-square fitting
Luciani et al., 2008 (11)	25	27.00±5.30	1.10±0.70	79.10±18.10	1.5	Respiratory trigger	0, 10, 20, 30, 40, 50, 100, 200, 400, 800	Pixel-wise asymptotic fitting then ROI analysis with parametric maps
Taimouri et al., 2015 (20)	29	25.00±18.00	1.01±0.29	54.60±55.10	1.5	FB	5, 50, 100, 200, 400, 600, 800	Pixel-wise asymptotic fitting then ROI analysis with parametric maps
Wurnig et al., 2016 (21)	8	22.90	1.16	65.50	3.0	FB	0, 10, 20, 40, 90, 100, 170, 200, 210, 240, 390, 530, 620, 750, 970, 1000	ROI analysis and asymptotic fitting with parameter-free algorithm
Jerome et al., 2014 (22)	10	17.70±2.90	1.16±0.12	44.00±5.00	1.5	FB	0, 20, 40, 60, 80, 100, 250, 500, 750	ROI analysis then Bayesian fitting
Lee et al., 2015 (23)	12	22.00±4.00	1.00±0.07	116.71±100.20	1.5	Electrocardiography (ECG) triggering (ET)	0, 30, 60, 100, 150, 200, 400, 600, 900	Pixel-wise least-squares fitting then ROI analysis with parametric maps
Regini et al., 2015 (24)	40	22.40±7.20	1.05±0.11	40.70±19.90	3.0	Respiratory trigger	0, 25, 50, 75, 100, 150, 200, 250, 300, 400, 500, 600, 700, 800	ROI analysis then asymptotic fitting

IVIM, intravoxel incoherent motion; PF, perfusion fraction, FB, free-breathing.