CHARTS OF FETAL SIZE .4. FEMUR LENGTH
CHARTS OF FETAL SIZE .4. FEMUR LENGTH
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DOI：
10.1111/j.1471-0528.1994.tb13078.x
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发表时间：
1994-02-01
期刊：
影响因子：
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通讯作者：
CAMPBELL, S
中科院分区：
文献类型：
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作者：
CHITTY, LS;ALTMAN, DG;CAMPBELL, S
目的建立一种新的胎儿股骨长度测量图。对妊娠12 ~ 42周的胎儿进行一次超声扫描的横断面研究，研究地点：伦敦一家教学医院的常规超声科，研究对象：在常规产前预约门诊就诊的663名妇女的胎儿，其超声和月经日期在10天内一致。对663个胎儿中的649个进行了测量。拟合线性-三次回归模型以估计平均值，并拟合单独的线性回归以估计标准差。通过结合这两个回归模型推导出百分位数，假设测量值在每个胎龄均呈正态分布。一个新的图表股骨大小和以前发表的data.Conclusions相比，我们已经构建了一个新的尺寸图胎儿股骨长度考虑到增加的变异性，随着胎龄的增加。我们将我们的图表与其他已公布的数据进行了比较，并认为所看到的差异可能主要是由于方法上的差异。
Objective To construct a new size chart for fetal femur length.Design A prospective, cross sectional study of fetuses scanned once only for the purpose of the study at gestations between 12 and 42 weeks.Setting The routine ultrasound department of a London teaching hospital.Subjects The fetuses of 663 women seen in the routine antenatal booking clinic whose ultrasound and menstrual dates agreed within 10 days.Results Femur length was measured on 649 of the 663 fetuses. A linear-cubic regression model was fitted to estimate the mean and a separate linear regression to estimate the standard deviation. Centiles were derived by combining these two regression models, assuming that the measurements have a normal distribution at each gestational age. A new chart for femur size is presented and compared with previously published data.Conclusions We have constructed a new size chart for fetal femur length taking into consideration the increasing variability with increasing gestational age. We have compared our chart with other published data, and believe that the differences seen may be largely due to methodological differences.