Apparent diffusion coefficient of kidneys with non-contrast magnetic resonance angiography for functional and anatomical assessment in renal artery stenosis

Table 2 Comparison of age and ADCavg values of kidneys in hypertensive patients with and without renal artery stenosis and healthy control volunteers

	RAS, n = 81	Hypertension with normal renal arteries, n = 91	P value (Comparison of patients with and without RAS)	Healthy control volunteers, n = 40
Age	40.9 ± 14.1	36.5 ± 13.1	0.035	28.2 ± 3.9
ADCaverage cortex (× 10-3 mm2/s)	1.77 ± 0.3	1.89 ± 0.2	0.002	1.90 ± 0.1
ADCaverage medulla (× 10-3 mm2/s)	1.76 ± 0.3	1.85 ± 0.2	0.021	1.84 ± 0.1
Stenosis degree	64.1 ± 17.56	-		-

RAS: Renal artery stenosis; ADC: Apparent diffusion coefficient.