应用超声心动图建立胎儿期右心系统多项参数Z值评分系统

发布时间：2018-01-12 18:48

本文关键词：应用超声心动图建立胎儿期右心系统多项参数Z值评分系统　出处：《中国超声医学杂志》2016年03期 　论文类型：期刊论文

【摘要】：目的建立胎儿右心系统多项参数的Z值评分正常参考值范围,定量评估胎儿右心系统功能。方法应用超声心动图对2 410例孕龄为22~38周的胎儿进行检测,根据停经史计算胎儿孕周(GA),测量股骨长径(FL)、双顶径(BPD)。通过标准四腔心切面测量心脏收缩末期右房横径(RATD)、长径(RALD)、肺动脉瓣环内径(PA);舒张末期右室横径(RVTD)、长径(RVLD)。以GA、FL及BPD为自变量,右心系统参数为应变量建立最佳模型,并进行标准差(SD)的校正,运用公式计算Z值评分。结果胎儿生物学生长参数GA、FL、BPD与RATD、RALD、RVTD、RVLD、PA呈良好的直线相关关系。采用绝对残差加权线性回归消除SD的异方差性,建立SD直线回归模型,根据方程得出右心系统参数的Z值评分。结论应用统计学方法,建立了通过GA、FL、BPD计算RATD、RALD、RVTD、RVLD、PA的Z值评分正常参考范围,为胎儿右心系统功能的定量评估提供更加精准的参考标准。
[Abstract]:Objective to establish the normal reference range of Z value score for multiple parameters of fetal right heart system. Methods 2410 fetuses of 22 ~ 38 weeks gestational age were measured by echocardiography, and the gestational weeks (GAA) were calculated according to the history of menopause. The right atrial transverse diameter (RATD), the long diameter of RALDD, the inner diameter of pulmonary annulus were measured by standard four-chamber central section. The end diastolic right ventricular transverse diameter (RVTD) and long diameter RV LDD were used to establish the best model with GAFL and BPD as independent variables and the parameters of right heart system as dependent variables, and the calibration of standard deviation (SDD) was carried out. Results the parameters of fetal biological growth, GAFL-BPD and RATDX RALDD RVTDX RVLD, were calculated by the formula. The absolute residual weighted linear regression was used to eliminate the heteroscedasticity of SD and the SD linear regression model was established. According to the equation, the Z score of the parameters of the right heart system was obtained. Conclusion the RATDX RALDD RVTDX RVLD was established by using the statistical method. The normal reference range of Z score of PA provides a more accurate reference standard for quantitative evaluation of fetal right ventricular system function.
【作者单位】：第四军医大学西京医院超声科;西北妇女儿童医院医学超声中心;
【分类号】：R540.45;R714.5
【正文快照】： 结果胎儿生物学生长参数GA、FL、BPD与RATD、RALD、RVTD、RVLD、PA呈良好的直线相关关系。采用绝对残差加权线性回归消除SD的异方差性,建立SD直线回归模型,根据方程得出右心系统参数的Z值评分。结论应用统计学方法,建立了通过GA、FL、BPD计算RATD、RALD、RVTD、RVLD、PA的Z值

【相似文献】