Quantitative Analysis of Placental Vasculature by Three-Dimensional Power Doppler Ultrasonography in Normal Pregnancies From 12 to 40 Weeks of Gestation
Quantitative Analysis of Placental Vasculature by Three-Dimensional Power Doppler Ultrasonography in Normal Pregnancies From 12 to 40 Weeks of Gestation
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DOI：
10.1016/j.placenta.2008.11.010
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发表时间：
2009-02-01
期刊：
影响因子：
3.8
通讯作者：
Zugaib, M.
中科院分区：
文献类型：
--
作者：
de Paula, C. F. S.;Ruano, R.;Zugaib, M.
根据胎龄和胎盘体积评估胎盘血管指数的分布和变化。 2007年3月至11月，我们对295例妊娠12至40周的正常妊娠进行了三维（3D）功率多普勒超声检查。对所有患者使用相同的预先设定的设置，将能量多普勒应用于胎盘并通过旋转技术(VOCAL TM )获得胎盘体积。 3D功率直方图用于确定胎盘血管指数：血管化指数（VI）、血流指数（FI）和血管化血流指数（VFI）。然后根据胎龄和胎盘体积绘制胎盘血管指数。所有胎盘血管指数在整个妊娠期间呈现恒定分布。观察到胎盘血管指数随胎盘体积增加而降低的趋势，但仅在考虑胎盘 FI 时才具有统计学意义（p < 0.05）。尽管胎盘体积随孕周而增加，但通过 3D 功率多普勒超声检查估计的所有胎盘血管指数在整个妊娠期间呈现恒定分布。 (C) 2008 Elsevier Ltd. 保留所有权利。
Evaluate the distribution and variation of placental vascular indices according to gestational age and placental volume. From March to November 2007, three-dimensional (3D)-power Doppler ultrasound was performed in 295 normal pregnancies from 12 to 40 weeks of gestation. Using the same preestablished settings for all patients, power Doppler was applied to the placenta and placental Volume was obtained by the rotational technique (VOCAL(TM)). The 3D-power histogram was used to determine the placental vascular indices: vascularization index (VI), flow index (FI) and vascularization-flow index (VFI). The placental vascular indices were then plotted against gestational age and placental volume. All placental vascular indices showed constant distribution throughout gestation. A tendency for a reduction in placental vascular indices with increased placental volume was observed, but was only statistically significant when placental FI was considered (p < 0.05). All placental vascular indices estimated by 3D-power Doppler ultrasonography presented constant distribution throughout gestation, despite the increase in placental volume according to gestational age. (C) 2008 Elsevier Ltd. All rights reserved.