妊娠中晚期正常胎儿静脉导管入口处内径范围探讨  

Discussion on the Values of the Inlet Diameter of the Ductus Venosus in Normal Fetuses during the Second and Third Trimester

作　　者：王磊[1] 张颖[1] 蔡爱露[1] WANG Lei,ZHANG Ying,CAI Ailu(Department of Ultrasound, Shengjing Hospital, China Medical University, Shenyang 110004, Chin)

机构地区：[1]中国医科大学附属盛京医院超声科,沈阳110004

出　　处：《中国医科大学学报》2018年第7期601-603,共3页Journal of China Medical University

基　　金："十二五"国家科技支撑计划项目(2014BAI06B05)

摘　　要：目的建立妊娠中晚期正常胎儿静脉导管入口处内径范围。方法应用彩色多普勒超声显示250例孕18～40周正常单胎胎儿静脉导管,去掉彩色,在二维灰阶图像上测量静脉导管入口处内径。建立各孕周胎儿静脉导管内径范围,并分析其与孕周的关系。结果 18～21周、22～25周、26～29周、30～33周、34～37周、38～40周正常胎儿静脉导管入口处内径分别是(1.2±0.2)mm、(1.5±0.3)mm、(1.7±0.3)mm、(1.9±0.2)mm、(2.0±0.3)mm、(2.2±0.3)mm。胎儿静脉导管入口处内径与孕周正相关(r=0.7,P<0.05)。结论妊娠中晚期能够观察到胎儿静脉导管,并能进行管径测量。妊娠中晚期正常胎儿静脉导管入口处内径范围建立可能对早期发现静脉导管异常及静脉导管相关疾病有帮助。正常胎儿静脉导管入口处内径随着孕龄增加而增加。Objective To establish ranges of the inlet diameter of the ductus venosus（DV） in normal fetuses during the second and third trimesters. Methods Color doppler ultrasound was used to examine 250 normal singleton pregnancies at 18-40 weeks of gestation. The color was removed,the inlet diameter of the DV was measured on the two-dimensional gray-scale image,and its relationship with the gestational week was analyzed. Results At 18-21 weeks,22-25 weeks,26-29 weeks,30-33 weeks,34-37 weeks,and 38-40 weeks of pregnancy,the average inlet diameter was 1.2±0.2 mm,1.5±0.3 mm,1.7±0.3 mm,1.9±0.2 mm,2.0±0.3 mm,and 2.2±0.3 mm,respectively. The inlet diameter of the DV was correlated with gestational age（r = 0.7,P 0.05）. Conclusion It is possible to observe the DV and measure its diameter during the mid-second trimester. The range of the inlet diameter of the DV may be useful for the early diagnosis of DV-related disease. The inlet diameter of the DV increased with gestational age.

关 键 词：胎儿 妊娠中晚期 静脉导管 管径 多普勒 

分 类 号：R714.5[医药卫生—妇产科学] R445.1[医药卫生—临床医学]