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目的:探讨超声监测胎儿静脉血流频谱在宫内发育迟缓诊断中的应用价值。方法:选取永康市第一人民医院2016年2月至2017年2月诊治的胎儿宫内发育正常的孕妇(对照组)105例和疑有胎儿宫内发育迟缓的孕妇(观察组)105例为研究对象，进行胎儿静脉血流频谱检测，比较两组静脉血流频谱参数。结果:观察组静脉导管血流量与脐静脉血流量比值(49.21±2.19)%、静脉导管血流量为(47.10±3.48)mL/min、下腔静脉反流分数为(16.64±1.69)%，均高于对照组的(43.20±2.18)%、(38.69±2.64)mL/min、(6.19±0.58)%，观察组脐静脉血流量为(83.21±4.59)mL/min，低于对照组的(89.63±5.12)ml/min，两组差异均有统计学意义(n t＝19.93、9.57、19.73、59.93，均n P<0.01)。n 结论:超声监测胎儿静脉血流频谱具有无创性，可客观反映胎儿宫内的缺血缺氧情况，有利于胎儿宫内发育迟缓的诊断。“,”Objective:To study the clinical value of ultrasonic monitoring fetal venous blood flow spectrum in the diagnosis of intrauterine retardation.Methods:From February 2016 to February 2017, 105 pregnant women with normal fetal intrauterine development (control group) and 105 pregnant women with suspected fetus intrauterine growth retardation(observation group) were selected in the research.The fetal venous blood flow spectrum was detected, and the venous blood flow spectrum parameters were compared between the two groups.Results:The ratio of venous catheter blood flow and umbilical venous blood flow[(49.21±2.19)%], intravenous catheter blood flow[(47.10±3.48)mL/min], the inferior vena cava reflux score[(16.64±1.69)%] in the observation group were higher than those in the control group[(43.20±2.18)%, (38.69±2.64)mL/min, (6.19±0.58)%], the umbilical venous blood flow of the observation group[(83.21±4.59)mL/min] was lower than that of the control group[(89.63±5.12)mL/min], the differences between the two groups were statistically significant (n t=19.93, 9.57, 19.73, 9.57, all n P<0.001).n Conclusion:Ultrasound venous blood flow frequency spectrum of a fetus is noninvasive, and can objectively reflect the fetal intrauterine ischemia anoxic condition, which is helpful to the diagnosis of fetal intrauterine retardation.