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中华医学超声杂志(电子版) ›› 2015, Vol. 12 ›› Issue (03) : 223 -227. doi: 10.3877/cma.j.issn.1672-6448.2015.03.011

所属专题: 文献

妇产科超声影像学

正常孕11~16周孕妇子宫动脉血流多普勒特征的研究
伍颖恒1,(), 樊绮云1, 虞翌旻1, 陈婉明1, 邓洁霞1   
  1. 1. 510180 广州市妇女儿童医疗中心超声科
  • 收稿日期:2014-05-05 出版日期:2015-03-01
  • 通信作者: 伍颖恒
  • 基金资助:
    广州市医药卫生科技项目(2013A011049)

The study of uterine artery blood flow at 11-16 weeks normal gestation

Yingheng Wu1,(), Qiyun Fan1, Yimin Yu1, Wanming Chen1, Jiexia Deng1   

  1. 1. Department of Ultrasound, Guangzhou Women and Children’s Medical Center, Guangzhou 510180, China
  • Received:2014-05-05 Published:2015-03-01
  • Corresponding author: Yingheng Wu
  • About author:
    Corresponding author: Wu Yingheng, Email:
引用本文:

伍颖恒, 樊绮云, 虞翌旻, 陈婉明, 邓洁霞. 正常孕11~16周孕妇子宫动脉血流多普勒特征的研究[J]. 中华医学超声杂志(电子版), 2015, 12(03): 223-227.

Yingheng Wu, Qiyun Fan, Yimin Yu, Wanming Chen, Jiexia Deng. The study of uterine artery blood flow at 11-16 weeks normal gestation[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2015, 12(03): 223-227.

目的

分析正常孕11~16周孕妇子宫动脉血流多普勒超声特征。

方法

选取广州市妇女儿童医疗中心297名正常孕11~16周的单胎孕妇,根据每一孕周为一组共分为6组(11~11+6周、12~12+6周、13~13+6周、14~14+6周、15~15+6周、16~16+6周);按胎盘位置分为居中组、右侧组、左侧组;按子宫动脉阻力指数(RI)分为<0.60组、0.60~0.69组、0.70~0.79组、0.80~0.85组及≥0.85组;分析不同孕周、不同胎盘位置的子宫动脉的多普勒参数特征,及子宫动脉不同RI值舒张早期α切迹的出现频率。

结果

(1)子宫动脉的平均双侧子宫动脉收缩期最大血流速度(S)与舒张末期血流速度(D)比值(S/D)、搏动指数(PI)、阻力指数(RI)随孕周增加而下降,但RIm、S/Dm值在各孕周之间差异无统计学意义;孕15、16周PIm值与11、12、13、14周相比,差异有统计学意义(P值<0.05)。各孕周PIm平均值为:11周1.96±0.39、12周1.94±0.45、13周1.79±0.43、14周1.79±0.36、15周1.51±0.43、16周1.50±0.30。(2)胎盘附着侧的子宫动脉RI、PI、S/D值均低于对侧,其中左侧胎盘组双侧RI差值为-0.04(t?=?-3.095,P?=?0.005)、双侧PI差值为-0.24(t?=?-3.232,P?=?0.004)、双侧S/D差值为-1.00(t?=?-2.965,P?=?0.007);右侧胎盘组双侧RI差值为0.04(t?=?6.159,P?=?0.000)、双侧PI差值为0.43(t?=?6.614,P?=?0.000)、双侧S/D差值为2.05(t?=?6.378,P?=?0.000);居中胎盘组双侧RI差值为0.02(t?=?4.150,P?=?0.000)、双侧PI差值为0.14(t?=?4.475,P?=?0.000)、双侧S/D差值为0.54(t?=?4.376,P?=?0.000)。(3)子宫动脉按RI分组的α切迹发生率:<0.60组,双侧均为0;0.60~0.69组,左侧为0.08、右侧为0.08;0.70~0.79组中,左侧为0.34、右侧为0.31;0.80~0.85组中,左侧为0.65、右侧为0.72;≥0.85组中,右侧为0.81,左侧为0.87。

结论

孕11~16周子宫动脉多普勒参数有可能作为检测子宫胎盘灌注的可靠方法之一。

Objective

To analyze the Doppler indices of uterine artery at 11-16 weeks normal gestation.

Methods

Two hundred and ninty-seven normal pregnant women were consecutively recruited to take routine ultrasound examination at 11-16 weeks' gestation. According to gestational week, they were divided into 6 groups (11-11+6 weeks, 12-12+6 weeks, 13-13+6 weeks, 14-14+6 weeks, 15-15+6 weeks, 16-16+6 weeks). According to the location of placenta, they were divided into 3 groups (central placenta, right placenta, left placenta). Finally, the pregnant women were divided into 5 groups (RI<0.60 group, 0.60-0.69 group, 0.70-0.79 group, 0.80-0.85 group and≥0.85 group) according to resistance index (RI). Doppler indices of uterine artery were measured in each case.

Results

(1) The PIm, RIm, S/Dm values (the mean PI, RI, S/D values of bilateral uterine artery) were decreased with the progress of pregnancy, but the difference of the RIm, S/Dm were not significant. Only the decrease of PIm after 15 weeks was significant (P<0.05). The mean PIm of each group was: 11 weeks 1.96±0.39, 12 weeks 1.94±0.45, 13 weeks 1.79±0.43, 14 weeks 1.79±0.36, 15 weeks 1.51±0.43, 16 weeks 1.50±0.30. (2) The PI, RI, S/D values of uterine artery with placenta attached were lower than the other side. In the left placenta group, bilateral RI difference was -0.04 (t=-3.095, P=0.005), bilateral PI difference was -0.24 (t=-3.232, P=0.004), bilateral S/D difference was -1.00 (t=-2.965, P=0.007); in the right placenta group, bilateral RI difference was 0.04 (t=6.159, P=0.000), bilateral PI difference was 0.43 (t=6.614, P=0.000), bilateral S/D difference was 2.05 (t=6.378, P=0.000); in the middle placenta group, bilateral RI difference was 0.02 (t=4.150, P=0.000), bilateral PI difference was 0.14 (t=4.475, P=0.000), bilateral S/D differencewas 0.54 (t=4.376, P=0.000). (3) According to the RI, incidence rates of α-notch detected: in <0.60 group both sides were 0; in 0.60-0.69 group, left uterine artery was 0.08, right uterine artery was 0.08; in 0.70-0.79 group, left uterine artery was 0.34, right uterine artery was 0.31; in 0.80-0.85 group, left uterine artery was 0.65, right uterine artery was 0.72; in ≥0.85 group, left uterine artery was 0.81, right uterine artery was 0.87.

Conclusion

The uterine artery Doppler indices of 11-16 weeks maybe a reliable and non-invasive method for examining uteroplacental perfusion.

图2 有舒张早期α切迹的子宫动脉频谱
表1 各孕周孕妇双侧子宫动脉的多普勒超声参数检测结果(±s
表2 各孕周孕妇双侧子宫动脉多普勒超声参数检测结果的平均值比较(±s
表3 不同胎盘位置两侧子宫动脉参数的差值及配对检验结果
表4 子宫动脉舒张早期α切迹出现的频率
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