ACOG vs AnthroCalcFetal

The American College of Obstetricians and Gynecologists Ob-Gyns: Download the ACOG app and stay connected with authoritative information from the leading experts in women’s health care. Get valuable tools, resources, and clinical guidelines to help you in your practice. • EDD Calculator – Calculate the due date according to guidelines jointly developed by ACOG, AIUM, and SMFM • Indicated Delivery (ACOG members only) – Provides members with suggestions related to the timing of delivery based on selected conditions, the patient’s EDD/EGA, and ACOG’s clinical guidance • Clinical Consensus, Clinical Practice Guidelines, and Practice Advisories – Get the latest on techniques, clinical management issues, and emerging issues in obstetric and gynecologic practice • And more!

The “AnthroCalcFetal” app uses the “World Health Organization (WHO) Fetal Growth Charts” [Kiserud T, et al. PLoS Med 2017;14e1002220] for 14–40 weeks of gestational age. WHO also offers an online calculator at srhr.org/fetalgrowthcalculator/#/. The coefficients of the polynomials representing quantiles of the distributions of the measured fetal parameters are available at github.com/jcarvalho45/whoFetalGrowth/. The estimated fetal weight (EFW) is calculated with Hadlock's third formula [Hadlock FP, et al. Am J Obstet Gynecol 1985;151(3):333–337], using the head circumference (HC), abdominal circumference (AC), and femur length (FL). The EFW can also be entered manually. Calculations by linear interpolation of centile values using log10 scale. On the “Plotter” screen, the fetal measurements entered can also be plotted on the “WHO Fetal Growth Charts” appropriate for the gestational age; the plotter function requires an active Internet connection.