Zanke S
Zentralbl Gynakol. 1978;100(13):861-4.
The prediction of the date of delivery by ultrasonic fetometry.--On the basis of the biparietal diameter the accuracy of the prediction of the term amounts to 87.3% within +/- 15 days in patients with unknown last menstrual period. The result can be improved by examination in the second trimester, controls of progress and by truncometry.
超声测量胎儿大小预测分娩日期。——对于末次月经日期不详的患者，根据双顶径预测预产期，在±15天内的准确率达87.3%。在孕中期进行检查、监测进展情况以及采用躯干测量法可提高预测结果。
