Beazley J M, Underhill R A
Br Med J. 1970 Nov 14;4(5732):404-6. doi: 10.1136/bmj.4.5732.404.
The method of estimating gestational age from the height of the fundus uteri during pregnancy has been investigated. Such wide variations occur in the length of the maternal abdomen and umbilical position and in the level of the uterine fundus at each gestational age that the method is not reliable. Assessment of uterine size by pelvic examination in the first trimester of pregnancy correlates more closely with gestational age than assessments made by abdominal palpation of the uterus at a later time.
通过测量孕期子宫底高度来估算孕周的方法已得到研究。孕妇腹部长度、脐部位置以及各孕周时子宫底高度存在如此大的差异，以至于该方法并不可靠。在妊娠早期通过盆腔检查评估子宫大小与孕周的相关性比在妊娠后期通过腹部触诊评估子宫大小更为紧密。
