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Fetal Echo

Fetal valve annulus Z-score calculator

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

Mitral Valve Annulus

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

Patient and measurement

Enter gestational age and observed value

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

Calculated in this browser. Entered values and results are not saved or sent to ZED Cardio.