Transvaginal sonographic biometry in early pregnancy - A growth model

被引：11

作者：

Bahlmann, F ^{[1
]}

Merz, E ^{[1
]}

Weber, G ^{[1
]}

Wellek, S ^{[1
]}

Engelhardt, O ^{[1
]}

机构：

[1] ZENT INST MANNHEIM,BIOSTAT ABT,MANNHEIM,GERMANY

来源：

ULTRASCHALL IN DER MEDIZIN | 1997年 / 18卷 / 05期

关键词：

transvaginal ultrasonography; first trimester; biometry; chorionic cavity; amniotic cavity; crown-rump-length; yolk sac; biparietal diameter;

D O I：

10.1055/s-2007-1000425

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Purpose: Evaluation of a growth model for the biometric parameters of early pregnancy: Chorionic cavity, yolk sac, amniotic cavity, crown-rump length and biparietal diameter. Method: 618 clinically well-dated singleton pregnancies of the first trimester were measured in a prospective cross-sectional study with high-frequency transvaginal ultrasound between 28 and 94 days post menstruation. Results: Normal curves (5th, 50th, 95th percentiles) for all parameters were established using our growth model. The growth curves of chorionic cavity amniotic cavity, and biparietal diameter showed a linear growth whereas the growth curve of the crown-rump-length represented an exponential curve. Linear growth of the yolk sac was found until 8 weeks of gestation and there was no growth alteration after this time. Conclusion: With our growth curves of the first trimester it is possible to monitor the embryonic development with several parameters.

引用

页码：196 / 204

页数：9

共 23 条

[1] ULTRASONOGRAPHIC MEASUREMENT OF THE YOLK-SAC [J].