Table 4.

Intraclass correlation coefficients (ICCs) assessing variation between the three ultrasound measurements acquired from the same participant for the volumetric pulsatility index (vPI), volumetric resistance index (vRI) and volumetric systolic/diastolic ratio (vS/D) derived from vascularisation‐flow index (VFI) and fractional moving blood volume (FMBV)

Vascular index	Parameter	ICC
VFI (n = 22)	vPI	0.80 (0.60–0.91)
	vRI	0.81 (0.63–0.92)
	vS/D	0.77 (0.53–0.90)
FMBV (n = 20)	vPI	0.62 (0.20–0.84)
	vRI	0.62 (0.20–0.84)
	vS/D	0.61 (0.19–0.83)
Renal artery PWD (n = 48)	PI	0.60 (0.44–0.77)
	RI	0.59 (0.43–0.73)
	S/D	0.58 (0.69–0.89)