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Objective: To develop fetal and neonatal population weight charts. The rationale for this objective is that while reference ranges of estimated fetal weight (EFW) are representative of the whole population, the traditional approach of deriving birth-weight (BW) charts is
In this study, we propose that the reference population for BW charts, as in the case of EFW charts, should comprise all babies at a given gestational age, including those still in utero.
Chart based on fetal weight equation proposed by Hadlock et al. In utero analysis of fetal growth: a sonographic weight standard. Radiology 1991;181(1):129-33 and adapts the customization proposed by Gardosiet al. Customised antenatal growth charts.
The birth weight is plotted on the reference range for gestational age derived from the formula reported by: Nicolaides KH, Wright D, Syngelaki A, Wright A, Akolekar R. Fetal Medicine Foundation fetal and neonatal population weight charts. Ultrasound Obstet Gynecol 2018; doi:10.1002/uog.19073 .
5 kwi 2023 · This calculator is based on The World Health Organization Fetal Growth Charts 1 and intended for international use.
These scientifically robust clinical tools may be used to monitor and evaluate maternal and fetal wellbeing, as well as infant health and nutrition at an individual and population level. Practitioners can download and use these charts freely.
Growth charts for the fetal ultrasound measurements biparietal diameter, head circumference, abdominal circumference, femur length, and humerus length; for estimated fetal weight; and for the ratios femur length/head circumference and femur length/biparietal diameter in one Excel file.
