三维超声测量早孕体积与孕龄相关性研究

发布时间：2018-02-25 18:14

本文关键词： 妊娠初期胎儿体积描记术超声检查　出处：《重庆医学》2015年12期 　论文类型：期刊论文

【摘要】：目的探索三维超声测量早孕体积参数与孕龄相关性的问题。方法选择正常早期妊娠的孕妇303例,先用腹部容积探头二维模式对早孕期妊娠囊进行扫描,常规测量妊娠囊、卵黄囊及胚芽的大小(直径或长度)。再启用三维对妊娠囊进行三维图像采集,应用三维容积自动测量技术(VOCAL)测量各体积。结果多元线性相关分析:孕天数与胚芽体积、妊娠囊体积,胚芽体积与妊娠囊体积密切相关;而卵黄囊体积与孕天数、胚芽体积和妊娠囊体积的相关性相对小。多元线性回归分析:以孕天数(Y)为应变量,妊娠囊体积(X1)、胚芽体积(X2)、卵黄囊体积(X3)为自变量,建立回归方程,经方差分析,自变量卵黄囊体积的系数为负值,相关不大;多元逐步回归分析:与多元线性相关分析结论相同。更正回归方程为:孕天数=0.114 X1+1.377 X2+56.724。结论三维超声测量的早孕体积参数中,胚芽体积和妊娠囊体积与孕龄,胚芽与妊娠囊体积相关性大,而与卵黄囊体积相关性较小。
[Abstract]:Objective to explore the correlation between the volume parameters of early pregnancy and gestational age by three-dimensional ultrasound. Methods 303 pregnant women with normal early pregnancy were selected. The size (diameter or length) of yolk sac and embryo was used to collect three-dimensional images of pregnancy sac, and the volume was measured by using three-dimensional volumetric automatic measurement technique. Results multiple linear correlation analysis: pregnancy days and embryo volume, The volume of pregnancy sac and embryo volume were closely related to the volume of pregnancy sac, while the correlation between yolk sac volume and pregnancy days, embryo volume and pregnancy sac volume was relatively small. Gestational sac volume X _ 1, embryo volume X _ 2, yolk sac volume X _ 3) were independent variables. The regression equation was established. The coefficient of independent variable yolk sac volume was negative, and the correlation was not significant. Multiple stepwise regression analysis showed that the regression equation was the same as that of multivariate linear correlation analysis. The corrected regression equation was 0.114 X 11. 377 x 25. 724. Conclusion among the parameters of early pregnancy volume measured by three dimensional ultrasound, the volume of embryo and the volume of pregnancy sac and gestational age. There was a large correlation between embryo and the volume of pregnancy sac, but little correlation with the volume of yolk sac.
【作者单位】：上海市嘉定区妇幼保健院影像科;
【基金】：上海市嘉定区卫生局项目(KYXM2009-12-15)
【分类号】：R445.1;R714.5

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