解剖M型超声建立正常胎儿二尖瓣环位移Z评分数据模型的研究

发布时间：2018-03-06 22:33

本文选题：超声心动图　切入点：Z评分　出处：《中国超声医学杂志》2015年11期 　论文类型：期刊论文

【摘要】：目的建立胎儿二尖瓣环位移(MAPSE)Z评分正常值参考范围,定量评估胎儿左心室功能。方法应用超声心动图对1 012例孕龄为19~41周的胎儿进行检测,根据停经史计算胎儿的孕周(GA),测量胎儿的双顶径(BPD)、股骨长径(FL),并通过解剖M型超声测量MAPSE。以GA、BPD及FL作为自变量,MAPSE作为因变量建立最佳模型,并校正标准差(SD),通过统计分析运用公式计算得到Z评分的参考范围。结果统计分析显示,直线回归方程能够很好地反映胎儿非心血管参数BPD、FL、GA与MAPSE之间的相关性。运用绝对残差的加权回归消除SD的异方差性,建立直线回归模型,最后根据方程即可得出不同参数的MAPSE的Z评分值。结论运用统计学方法,建立了通过胎儿GA、BPD、FL计算MAPSE的Z评分的正常参考范围,为胎儿左心室功能评估供了更加精准的参考范围。
[Abstract]:Objective to establish the reference range of mitral annular displacement mitral annular mitral annular displacement MAPSEZ score and to quantitatively evaluate the left ventricular function of the fetus. Methods 1012 fetuses of 1941 weeks gestational age were detected by echocardiography. According to the history of menopause, the gestational age of the fetus was calculated, the biparietal diameter of the fetus was measured, the femur length was measured, and the MAPSE was measured by dissecting M-mode ultrasound. The best model was established with GABPD and FL as independent variables and MAPSE as dependent variables. The standard deviation is corrected and the reference range of Z score is calculated by using the formula through statistical analysis. The linear regression equation can well reflect the correlation between fetal non-cardiovascular parameter BPD-FLGA and MAPSE. The absolute residual weighted regression is used to eliminate the heteroscedasticity of SD, and a linear regression model is established. Finally, the Z score of MAPSE with different parameters can be obtained according to the equation. Conclusion the normal reference range for calculating Z score of MAPSE through fetal GABA BPDFL is established by using statistical method, which provides a more accurate reference range for fetal left ventricular function evaluation.
【作者单位】：萧山区第一人民医院超声科;平阳县人民医院;浙江大学医学院附属邵逸夫医院超声科;平阳县人民医院麻醉科;
【基金】：浙江省人口计划生育科研项目(No.2014KYB354)
【分类号】：R445.1;R714.5

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