G B Duff's scientific contributions

Publications (2)

Article
The curves of the growth of the maximum fetal diameter and the biparietal diameter before 20 weeks of gestation, measured by ultrasound and derived from a New Zealand population, are presented. They are compared with other published growth curves and reveal that in the New Zealand population there is a greater variation from the mean. In the case o...
Article
The accuracy of ultrasonic estimation of fetal maturity and, therefore, the delivery date is greatest when the biparietal diameteris less than 5.0 cm and least when it is greater than 9.0 cm. A comparison of the accuracy of ultrasonic and last menstrual period based estimations of the delivery date revealed that there is no significant increase in...