【摘要】 以 B 型超声显象仪对228例无并发症孕妇(26～40周)的胎儿股骨长度进行测量,结果显示股骨随孕龄增加而增长,r=0.9916,应用回归方程得 Y(孕龄)=-3.028+0.165X(股骨长度),此系估计胎龄的另一项准确指标。动态观察胎儿股骨长度能了解胎儿宫内发育情况。本文中股骨长度/胎头双顶径比率平均为71.96±2.3%,若测得比率异常,可为临床诊断胎儿脑积水、小头畸形、短肢侏儒症等提供参考。更多还原

【Abstract】 Fetal femur length(FL)was measured with B-ultrasound acanner in 228 uncomplicated gravida with 26-40 weeks’gestation.The result of this analysis generated the following equation:y=-3.028+0.615x(Y=gestational age.x= femur length).The correlation coefficient of gestational age versus FL is sign- ificant,it suggests that the measurement of the fetal femur length is a precise index of gestational age. serially observing the FL offers the diagnosis of intrauterine growth retard- ation.A liner relationship between growth of FL and biparietal diameter(BPD) after 26 weeks’gestational showed that the normal ratio of FL to BPD was fou- nd to be 71.96±2.3% in our laboratory.Use of the FL/BPD ratio for diag- nosing Microcephaly,Hydrocephalus and Short-Limbed dwarfism is effective.更多还原