Fetal Echo

Fetal Cardiology

Selected fetal cardiac biometry Z-score calculations using gestational age and corrected full-precision Vieira coefficients.

ZED Quick Tools · Fetal

Fetal valve Z-scores

Free

Select a fetal valve annulus reference. Gestational age is the fixed predictor.

Reference selection

Measurement

Predictor: Gestational Age · Normal singleton fetuses from 18+0 through 34+6 weeks’ gestation. No sex stratification; do not extrapolate.

Patient and measurement

Gestational weeksweeksAdditional daysdaysEnter 0–6 days.Mitral Valve Annulus (mm)mm

Enter gestational age and the observed measurement to calculate the selected reference.