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目的应用实时剪切波弹性成像(SWE)检测妊娠期高血压疾病晚孕期胎盘弹性,探讨其能否用于预测妊娠期高血压疾病的胎盘功能。方法选取60例晚孕期妊娠妇女(妊高征组30例,正常组30例),超声常规测量两组脐动脉血流动力学参数(S/D、PI、RI),SWE测量前壁胎盘弹性值,随访新生儿1min Apgar评分,检验弹性值与上述结果的相关性。结果 (1)晚孕期胎盘中心及边缘部分弹性值结果比较,妊高征组胎盘中心、边缘弹性值分别为:(12.12±1.90)kPa、(12.37±2.20)kPa,正常组胎盘中心、边缘弹性值分别:(6.37±0.59)kPa、(6.48±0.69)kPa,差异无统计学意义(P>0.05)。(2)妊高征组和正常组胎盘弹性平均值分别为(12.25±2.02)kPa、(6.42±0.63)kPa,差异有统计学意义(P<0.05)。(3)妊高征组胎盘弹性与脐动脉血流参数和新生儿1min Apgar评分之间无明显相关性(P>0.05)。结论妊娠期高血压疾病晚孕期胎盘弹性较正常组高,SWE可用于胎盘硬度的定量评估,但弹性升高与胎儿脐动脉血流参数和新生儿1min Apgar评分无明显相关性。
Objective To detect the placental elasticity of gestational hypertension during the first trimester with real-time shear wave elastography (SWE) and explore whether it can be used to predict the placental function of hypertensive disorder complicating pregnancy. Methods Sixty pregnant women in the second trimester of pregnancy (30 cases of PIH and 30 cases of normal group) were selected. The umbilical artery hemodynamic parameters (S / D, PI, RI) of the two groups were measured by ultrasound. The anterior wall placental elasticity Value, follow-up 1min Apgar score neonatal test elastic value and the above results. Results (1) The results of placental center and marginal elastic value in the second trimester pregnancy showed that placental centers and marginal elasticities in the PIH group were (12.12 ± 1.90) kPa and (12.37 ± 2.20) kPa, respectively. The placental center and marginal elasticity Values were (6.37 ± 0.59) kPa and (6.48 ± 0.69) kPa, respectively, with no significant difference (P> 0.05). (2) The average placental elasticity of PIH group and normal group were (12.25 ± 2.02) kPa and (6.42 ± 0.63) kPa respectively, with significant difference (P <0.05). (3) There was no significant correlation between placental elasticity and umbilical artery blood flow parameters in PIH group and Apgar score at 1 minute in neonates (P> 0.05). Conclusion The placental elasticity of pregnancy-induced hypertensive disorder in the first trimester of pregnancy is higher than that in the normal group. SWE can be used to evaluate the placental stiffness quantitatively. However, there is no significant correlation between the elastic increase and the fetal umbilical artery blood flow parameters and the 1-minute Apgar score.