Equation of Ferrero et al for Fetal Weight Estimation from Abdominal Circumference and Femur Length

Ferrero et al reported an equation based on ultrasonographic fetal measurements to predict fetal weight. The authors are from the University of Rome.

Patient selection: measurements performed within 7 days of delivery

Parameters:

(1) abdominal circumference in cm (AC)

(2) femur length in cm (FL)

X =

= (0.13244 * (AC)) - (0.12996 * (FL)) - (1.73588 * ((AC)^2) / 1000) + (3.09212 * (AC) * (FL) / 1000) + (2.18984 * (FL) / (AC)) + 0.77125

fetal weight in grams =

= 10 ^ (X)

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