Resources & References
WHO fetal growth reference
Kiserud T, Piaggio G, Carroli G, Widmer M, Carvalho J, et al. The World Health Organization Fetal Growth Charts: A Multinational Longitudinal Study of Ultrasound Biometric Measurements and Estimated Fetal Weight. PLOS Medicine. 2017;14(1):e1002220. doi:10.1371/journal.pmed.1002220
Coefficient source
Carvalho J. whoFetalGrowth: public implementation of the WHO fetal growth quantile regression coefficients. The coefficients used on this site reproduce the published WHO centile tables (Tables 6–11 of Kiserud et al. 2017) after rounding.
Parameters and centiles on this site
BPD, HC, AC, FL and EFW are plotted with the 5th, 25th, 50th, 75th and 95th centile curves from 13 to 41 weeks. The WHO reference itself covers 14 to 40 weeks.
Measurement technique and growth assessment
- Salomon LJ, Alfirevic Z, Da Silva Costa F, et al. ISUOG Practice Guidelines: ultrasound assessment of fetal biometry and growth. Ultrasound Obstet Gynecol. 2019;53(6):715–723.
- Hadlock FP, Harrist RB, Sharman RS, Deter RL, Park SK. Estimation of fetal weight with the use of head, body, and femur measurements — a prospective study. Am J Obstet Gynecol. 1985;151(3):333–337.
- Gordijn SJ, Beune IM, Thilaganathan B, et al. Consensus definition of fetal growth restriction: a Delphi procedure. Ultrasound Obstet Gynecol. 2016;48(3):333–339.
- Khalil A, Rodgers M, Baschat A, et al. ISUOG Practice Guidelines: role of ultrasound in twin pregnancy. Ultrasound Obstet Gynecol. 2016;47(2):247–263.