浅议胎盘循环的彩超观察.docVIP

精品论文 参考文献 浅议胎盘循环的彩超观察 哈尔滨市阿城区妇幼保健计划生育服务中心 黑龙江哈尔滨 150300 【摘 要】目的：探究彩色超声多普勒在监测胎盘循环中的作用，分析妊娠早期超声母体－胎盘循环监测数据，探讨其对妊娠期的预测价值。方法：利用彩色超声多普勒对20例正常妊娠和15例高危妊娠胎盘进行了纵向性监测检测子宫动脉主干上行支及子宫螺旋动脉的频谱形态等数据，通过比较，得出结论。结果：两组孕妇左右侧子宫动脉主干上行支血流阻力参数值略有差异，正常妊娠胎盘循环阻力随孕周增长逐渐下降，高危妊娠胎盘循环阻力明显高于正常妊娠。结论：彩色多普勒超声在监测子宫动脉上行支血流频谱参数可为临床提早干预治疗提供帮助，在临床应用中有很大价值。 【关键词】胎盘循环；彩色超声多普勒监测；妊娠 Observation on the Color Doppler Ultrasound of Placenta Circulation Abstract：Objective：To investigate the role of color Doppler ultrasound in the monitoring of placental circulation and to analyze the data of maternal-placental circulation monitoring in early pregnancy and to explore its predictive value in pregnancy.Methods：20 cases of normal pregnancy and 15 cases of high risk pregnancy placenta were detected by color Doppler ultrasonography.The data of the main branches of the uterus artery and the frequency spectrum of the uterine spiral arteries were detected by longitudinal color Doppler.Results：The parameters of the left and right uterine arteries of the two groups were slightly different.The placental circulation resistance of the normal pregnancy decreased gradually with the growth of the gestational age.The circulatory resistance of the placenta was significantly higher than that of the normal pregnancy.Conclusion：Color Doppler ultrasonography can be a useful tool for early intervention in the monitoring of uterine artery upstream blood flow spectrum parameters，which has great value in clinical application. KEYWORDS：placental circulation；color Doppler ultrasonography；pregnancy 前言：胎盘内有母体和胎儿两套血液循环，两者的血液在各自的封闭管道内循环，互不相混，但可进行物质交换。过去对人类母儿胎盘循环的认识主要来自体外灌注实验的推断，现如今，超声技术为我们提供了新的无损害胎盘循环研究方法，超声技术成为妇产科检查孕妇状况的重要手段。随着高档彩色多普勒超声仪的出现，直接监测胎盘内绒毛血管血流动力学变化已成为可能。人们对于胎儿和母体的情况有了进一步的认识。彩超是高清晰度的黑白B超再加上彩色多普勒。彩超是利用现代科技将多普勒信号转变为彩色信号，并与二维黑白声像图叠加，实现彩色血流显像，可作出黑白超难下的诊断。 1.资料与方法 1.1相关资料 选取2015年1-12月来我院妇产科接受检查的正常妊娠20例和高危妊娠15例，年龄17-45岁，平均年龄26.7岁，其中初产妇25例，经产妇10例。排除合并肾病、甲状腺功能亢进或低下、胎儿先天畸形等影响因素。孕妇均取仰卧位，平静呼吸，全面评估胎儿生长发育、羊水、胎