三维能量多普勒超声定量评估正常胎盘血流灌注和胎盘植入

发布时间：2018-11-01 16:23

【摘要】：目的采用三维能量多普勒超声(3D-PDU)观察正常前壁胎盘血流灌注情况,并对胎盘植入进行产前评估。方法将232名11~40孕周孕妇的正常单胎妊娠前壁胎盘作为正常对照组,10例经手术或病理证实为胎盘植入孕妇的胎盘作为观察组。采用3D-PDU的三维血管模式(3D Angio),测量两组血管化指数(VI)、血流指数(FI)、血管化-血流指数(VFI)。分析正常对照组胎盘血流参数与孕龄的关系,并对比两组测量参数的差异。结果正常对照组胎盘VI、FI、VFI与孕龄相关(r=0.678、0.766、0.410,P均0.01),且VFI与VI相关(r=0.800,P0.01)。观察组与正常对照组胎盘3D-PDU血流参数(VI、FI、VFI)差异均有统计学意义(P均0.05)。结论 3D-PDU可定量分析正常前壁胎盘血流灌注情况,为产前诊断胎盘植入提供量化评估依据。
[Abstract]:Objective to observe the blood flow and perfusion of placenta in normal anterior wall by three dimensional power Doppler ultrasound (3D-PDU) and to evaluate placenta accreta before delivery. Methods the placenta of the anterior wall of normal single pregnancy was used as the normal control group in 232 pregnant women of 1140 gestational weeks, and the placenta of 10 pregnant women with placenta accreta proved by operation or pathology was used as the observation group. Measurement of vascularization index (VI), blood flow index (FI), vascularization index (VFI). By 3D Angio), using 3D-PDU The relationship between placental blood flow parameters and gestational age in normal control group was analyzed, and the difference of measurement parameters between the two groups was compared. Results placental VI,FI,VFI was correlated with gestational age (P 0.01) and VFI was correlated with VI (P 0.01). There were significant differences in 3D-PDU blood flow parameters (VI,FI,VFI) between the observation group and the normal control group (all P 0. 05). Conclusion 3D-PDU can quantitatively analyze the blood flow and perfusion of normal anterior placenta and provide quantitative evaluation basis for prenatal diagnosis of placenta accreta.
【作者单位】：广州医科大学附属广东省妇儿医院;广东省妇幼保健院超声诊断科;
【基金】：中国疾病预防控制中心妇幼保健中心合生元母婴营养与健康研究项目(2012FY020)
【分类号】：R714.462;R445.1

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