Ultrasound methodology used to construct the fetal growth standards in the INTERGROWTH-21st Project.
Papageorghiou AT., Sarris I., Ioannou C., Todros T., Carvalho M., Pilu G., Salomon LJ., International Fetal and Newborn Growth Consortium for the 21st Century None.
A unified protocol is essential to ensure that fetal ultrasound measurements taken in multicentre research studies are accurate and reproducible. This paper describes the methodology used to take two-dimensional, ultrasound measurements in the longitudinal, fetal growth component of the INTERGROWTH-21(st) Project. These standardised methods should minimise the systematic errors associated with pooling data from different study sites. They represent a model for carrying out similar research studies in the future.