Widespread adoption of the Boerhaave method for generating the EDD charts could be expected to speed up the general acceptance of pure ultrasound dating. We have recently shown that is really not possible to accurately date or assess growth using a chart and wheel Ref3 and these will always be necessary until we have either universal computerised maternity systems or programmes built into the ultrasound scanners. Return to data entry for chart generation References 1. Customised ultrasound dating charts. British Maternal and Fetal Medicine Society.
Routine ultrasound is the method of choice for dating pregnancy.
Hutchon DJ, et al. Ultrasound Obstet Gynecol. Altman D G and Chitty L S. New Charts for ultrasound dating of pregnancy. Ultrasound Obstet Gynecol. This calculator is for educational use.