正常晚孕期胎儿脐动脉血流的彩色多普勒超声表现特点及其临床价值

Characteristics and Clinical Value of Color Doppler Ultrasound in Fetal Umbilical Flow in Normal Late Pregnancy

目的研究正常晚孕期胎儿脐动脉血流的彩色多普勒超声表现特点及其临床应用价值。方法选取我院2017年11月至2019年8月内来我院进行检查的正常晚孕期的单胎孕妇500例,以检查者的胎儿期动脉血流超声检测作为指标,运用彩色多普勒超声获得其正常胎儿的脐动脉血流频谱,测量其数值及研究其不同孕周的变化规律。选取我院2017年11月至2019年8月内来我院进行检查的正常晚孕期的单胎孕妇500例,产妇年龄16~44岁,平均年龄27.45岁,孕周28~40周,平均孕周33.74周。纳入标准:①确定为单胎的孕妇;②孕周在24~40周内;③超声诊断所得胎儿指标符合其周期;④胎儿无窘迫IUCR、羊水异常、畸形等情况。排除标准:①合并严重精神病产妇;②合并严重恶性肿瘤产妇;③因为各种因素拒绝进行检查的产妇。排除标准:①合并严重精神病产妇;②合并严重恶性肿瘤产妇;③因为各种因素拒绝进行检查的产妇。结果经过超声检查之后,比较不同孕周内正常胎儿的脐动脉血流动力学参数,得出随着孕周的增加动脉血流动力各项参数均随着孕周的增长,胎儿的脐带动脉血比值(S/D)值稳定降低。结论彩色多普勒超声检查应用于脐动脉血流的检查中能够初步建立晚孕正常胎儿脐动脉血流参数的正常参考值范围,了解在不同孕周的变化规律,准确预测胎儿宫内缺氧,及时处理治疗对提高围生医学质量、降低围生儿病死率和患病率等均具有重要意义。

Objective To study the features and clinical value of color Doppler ultrasound in fetal umbilical blood flow during normal late pregnancy.Methods From november 2017 to august 2019,500 single-born women with normal late pregnancy were selected to obtain the umbilical artery blood flow spectrum of normal fetus by color doppler ultrasound.From November 2017 to August 2019,500 cases of single pregnant women with normal late pregnancy were selected.Women aged 16-44 years,average age 27.45 years,gestational week 28-40 weeks,average gestational week 33.74 weeks.inclusion criteria:(1)Identified as a single-born pregnant woman;(2)Gestational week within 24-40 weeks;(3)Fetal indicators obtained from ultrasound diagnosis conformed to its cycle;(4)Fetal absence of distress iucr,amniotic fluid abnormalities,malformations,etc.Exclusion criteria:(1)Maternal with severe mental illness;(2)Maternal with severe malignant tumor;(3)Maternal who refused to be examined because of various factors.Exclusion criteria:(1)Maternal with severe mental illness;(2)Maternal with severe malignant tumor;(3)A woman who refuses to be examined because of various factors.Results After ultrasound examination,the hemodynamic parameters of umbilical artery in normal fetus were compared in different gestational weeks.Conclusion Color Doppler ultrasound can establish the normal reference value range of normal fetal umbilical artery blood flow parameters in late pregnancy,understand the variation rule of different gestational weeks,accurately predict fetal intrauterine hypoxia,and deal with the treatment in time to improve the quality of perinatal medicine and reduce perinatal mortality rate and prevalence are of great significance.