三维超声对晚孕期后颅窝池增宽胎儿小脑蚓部的测量评估

WITH THREE-DIMENSIONAL UTRASONOGRAPHY TO EVALUATE FETAL VERMIS WHICH BROADENING IN LATE PREGNANCY

目的:应用三维超声自由解剖切面(Omni View)联合容积对比成像(volume contrast imaging,VCI)技术,对后颅窝池中孕期20~24wk正常,晚孕期28~32wk增宽胎儿小脑蚓部的测量评估。方法:在2016-04~2017-06来我院进行产前三级筛查20~24wk均正常的孕妇1100例中,根据二级筛查28~32wk后颅窝池的正常与否,设为观察组和对照组。对比分析两组胎儿小脑蚓部面积。结果:比较两组孕妇的年龄、孕周及二级筛查时小脑蚓部面积差异无统计学意义(P>0.05)。结论:中孕期后颅窝池正常,晚孕期后颅窝池虽然增宽,若前后径小于13 mm,小脑蚓部面积也会正常。

Objective：With Three-dimensional OmniVicw combining with volume contrast imaging （VCI） to evaluate posterior fossa pool which is normal in second trimester,but broadening in third trimester.Methods： 1100 normal pregnant women in prenatal tertiary screening（20 to 24 weeks）From A- pril 2016 to June 2017 in Inner Mongolia people＇ s hospital.Divided patients into observation group and control group accoMing to the posterior fossa pool is normal or not in secondary, screening （28- 32 weeks）, and fetal cembellar vermis area were compared and analyzed. Results： There was no statistically significant difference in agc,gestational weeks and cemhellar vermis between two gmups（P 〉0.05） .Conclusion：While the posterior fossa pool is normal in second trimester and broadening,hut smaller than 13 mm in thiM trimester, the cerehellar vermis is normal.