Which reference ranges should one use for fetal biometry?

Fetal biometry is still a current, hotly debated topic, fueled by recent publications from large multicenter fetal biometry projects [1] [2]. Which normal range should an individual center use?

• References

• 1 Papageorghiou AT, Ohuma EO, Altman DG. et al. International standards for fetal growth based on serial ultrasound measurements: the Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project. Lancet 2014; 384: 869-879
• 2 Kiserud T, Piaggio G, Carroli G. et al. The World Health Organization Fetal Growth Charts: A Multinational Longitudinal Study of Ultrasound Biometric Measurements and Estimated Fetal Weight. PLoS Med 2017; 14: e1002220
• 3 Knitza J, Kurmanavicius J, Faschingbauer F. et al. Comparison of Current Swiss Fetal Biometry Reference Charts with Reference Charts from 1999. Are Fetuses Getting Bigger?. Ultraschall Med 2018 epub ahead of print; doi:10.1055/a-0591-3206
• 4 Kurmanavicius J, Wright EM, Royston P. et al. Fetal ultrasound biometry: 1. Head reference values. Br J Obstet Gynaecol 1999; 106: 126-135
• 5 Kurmanavicius J, Wright EM, Royston P. et al. Fetal ultrasound biometry: 2. Abdomen and femur length reference values. Br J Obstet Gynaecol 1999; 106: 136-143
• 6 Tutschek B. The fetal biometry references tool. Ultrasound Obstet Gynecol 2018; 52 (Suppl. 01) 107
• 7 Salomon LJ, Bernard JP, Ville Y. Analysis of Z-score distribution for the quality control of fetal ultrasound measurements at 20–24 weeks. Ultrasound Obstet Gynecol 2005; 26: 750-754
• 8 Snijders RJ, Nicolaides KH. Fetal biometry at 14-40 weeks' gestation. Ultrasound Obstet Gynecol 1994; 4: 34-48
• 9 Salomon LJ, Bernard JP, Duyme M. et al. The impact of choice of reference charts and equations on the assessment of fetal biometry. Ultrasound Obstet Gynecol 2005; 25: 559-565