| 摘要: |
| 目的应用三维超声容积对比成像C平面（VCI-C）技术量化评估正常不同孕周胎儿小脑蚓部参数，评估小脑蚓部发育，以期为胎儿产前筛查提供理论参考。方法选取21～34孕周正常胎儿380例，应用经腹三维超声VCI-C技术测量胎儿小脑蚓部前后径（AP）、头尾径（CC）、周长（C）及最大切面面积（MSA），观察小脑蚓部的发育规律，研究其与孕周的相关性。结果应用三维超声VCI-C技术测量胎儿小脑蚓部参数成功率为95.79%。胎儿小脑蚓部AP、CC、C、MSA与孕周均呈高度正相关（r=0.86、0.88、0.91、0.89，均P＜0.05），且与胎儿双顶径、头围及小脑横径亦均呈高度正相关（均P＜0.05）。以孕周为自变量，小脑蚓部AP、CC为应变量，多项式回归分析发现，胎儿小脑蚓部AP、CC与孕周均呈高度正相关（R2=0.89、0.92，均P＜0.05）。结论经腹部三维超声VCI-C技术测量胎儿小脑蚓部参数有助于评价胎儿小脑蚓部发育，可作为产前评估胎儿小脑蚓部发育的常规检查方法。 |
| 关键词: 超声检查 三维 VCI-C 胎儿 小脑蚓部 |
| DOI： |
| 分类号: |
| 基金项目:浙江省医药卫生科技计划项目 |
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| Quantitative evaluation of fetal cerebellar vermis with three-dimensional ultrasonography VCI-C |
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SUN Juan, LV Yaer, LIU Xinying
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Zhejiang provincial People's Hospital
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| Abstract: |
| Objective To quantitatively evaluate the development of fetal cerebellar vermis with three-dimensional ultrasonography volume contrast imaging in the C plane (VCI-C). Methods A total of 380 eligible pregnant women with 21～34 wks gestation were enrolled. The parameters AP, CC, C and MSA of the fetal cerebellar vermis were measured with 3-D ultrasonography VCI-C. Results The successful rate of measurement of fetal cerebellar vermis was 95.79% . AP, CC, C and MSA were correlated with gestational age (r=0.86, 0.88, 0.91, 0.89, respectively, all P＜0.05), which were significantly correlated with biparietal diameter, head circumference and transverse cerebellar diameter of fetus. Taking gestational age as independent variables, AP and CC as dependent variables, there was a linear relationship between gestational age and AP, CC (R2 = 0.89, 0.92, P＜0.05). Conclusion Three-dimensional ultrasonography VCI-C can accurately evaluate the cerebellar vermis develop- ment, it would bea standard prenatal examination for evaluation of the cerebellar vermis development. |
| Key words: Ultrasonography Three-dimensional Volume contrast imaging-C Fetus Cerebellar vermis |
