Fetal Hemodynamic Parameters in Low Risk Pregnancies: Doppler Velocimetry of Uterine, Umbilical, and Middle Cerebral Artery

Table 4

Intra- and interobserver variability of the Doppler velocimetric measurements of PI and SV of some fetal arteries evaluated with their ICC in a cohort of low risk pregnant women.

Artery	Intraobserver		Interobserver
		ICC (95% CI)		ICC (95% CI)
	PI
UtA	268	0.757 (0.701–0.804)	129	0.826 (0.761–0.874)
MCA	272	0.617 (0.538–0.685)	129	0.391 (0.234–0.527)
UA	271	0.795 (0.746–0.835)	129	0.692 (0.590–0.772)
	SV
UtA	268	0.812 (0.767–0.849)	129	0.248 (0.078–0.404)
MCA	272	0.891 (0.864–0.913)	129	0.926 (0.896–0.947)
UA	271	0.696 (0.629–0.752)	129	0.638 (0.552–0.730)

PI: pulsatility index; UtA: uterine artery; MCA: middle cerebral artery; UA: umbilical artery; ICC: Intraclass Correlation Coefficient; CI: confidence interval; SV: systolic velocity.