[关键词]
[摘要]
目的: 应用三维超声自由解剖切面( OmniView) 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。
[Key word]
[Abstract]
Objective: With Three－dimensional OmniView 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 April
2016 to June 2017 in Inner Mongolia people’s hospital．Divided patients into observation group and
control group according to the posterior fossa pool is normal or not in secondary screening ( 28 ～ 32
weeks) ，and fetal cerebellar vermis area were compared and analyzed． Ｒesults: There was no
statistically significant difference in age，gestational weeks and cerebellar vermis between two groups( P
＞0．05) ．Conclusion: While the posterior fossa pool is normal in second trimester and broadening，but
smaller than 13 mm in third trimester， the cerebellar vermis is normal．
[中图分类号]
Ｒ445．1; Ｒ－3
[基金项目]
收稿日期: 2018－01－19; 修回日期: 2018－05－11
基金项目: 内蒙古自治区科技计划项目( 20140149)
作者简介: 刘婧( 1982－) ，女，内蒙古自治区人民医院超声医学科主治医师，医学硕士。
通讯作者: 红华，主任医师，医学博士，E－mail: 16263634332@ qq．com 内蒙古自治区人民医院超声医学科， 010017
