Table 3.

Intra‐ and interobserver intraclass correlation coefficients (ICCs) assessing repeatability of the impedance indices measured from segmentation of the same STIC volume, as measured using vascularisation‐flow index (VFI) and fractional moving blood volume (FMBV)

Vascular index	Parameter	Intra‐observer ICC (Observer 1)	Intra‐observer ICC (Observer 2)	Interobserver ICC
VFI (n = 102)	vPI	1.00 (0.99–1.00)	0.98 (0.97–0.98)	0.98 (0.97–0.99)
	vRI	1.00 (1.00–1.00)	0.98 (0.97–0.99)	0.98 (0.96–0.98)
	vS/D	0.99 (0.99–1.00)	0.97 (0.95–0.98)	0.98 (0.96–0.98)
FMBV (n = 98)	vPI	0.98 (0.97–0.99)	0.96 (0.95–0.97)	0.96 (0.94–0.97)
	vRI	0.98 (0.97–0.99)	0.97 (0.95–0.98)	0.96 (0.94–0.97)
	vS/D	0.98 (0.97–0.98)	0.96 (0.94–0.97)	0.96 (0.94–0.97)