产前超声诊断双胎绒毛膜性的临床价值  

Prenatalultrasonic Diagnosis of Chorionicity in Twin Pregnancy

作　　者：薛敏[1] 曲侠[1] 胡海云[1] 张雁[1] 张晶莉[1] 张习武[1] 王宏婵[1] 

机构地区：[1]深圳市北京大学深圳医院,深圳518036

出　　处：《数理医药学杂志》2012年第3期299-302,共4页Journal of Mathematical Medicine

摘　　要：目的:探讨产前超声诊断双胎绒毛膜性的价值。方法:回顾分析我院172例经产后病理证实的双胎绒毛膜性的临床资料,总结其声像图特征。结果:在172例双胎中,其超声图像特点为:首诊孕周≤7孕周均可通过孕囊记数的方法诊断绒毛膜性,诊断符合率为100%,但很难确定羊膜囊性。首诊孕周为8～10孕周可通过记数来判断绒毛膜性和羊膜性,其诊断符合率为100%。首诊孕周为11～14孕周、14～28孕周及>28孕周可通过胎盘的记数、双胎峰征(A)字征、T字征及分隔膜的有无和厚度来判断绒毛膜性,其诊断符合率分别为100%、83.8%、51.9%(P分别>0.05、>0.05、<0.05)。结论:8～10孕周和11～14孕周是超声诊断双胎绒毛膜性的最佳时期。Objective： To evaluate the value of prenatalultrasonic diagnosis of chorionicity in twin pregnancy. Methods： The chorionicity confirmed by postnatal pathology in172 twin pregnancy in our hospital were reviewed and the ultrasonic characters were analysised. Results： When the first ultrasonic diagnosis of gestational week 47 gestational weeks, chorionicity can be diagnosed by gestational sac count via 100% accuracy , however, it is difficult to confirm amniotic sac. When the first diagnosis of gestational week is during 8--10 gestational weeks , chorionic sac and amniotic sac can be counted via 100% accuracy. When the first diagnosis of gestational week is during 11-14 , 14-28, or larger than 28 gestational weeks, chorionicity can be diagnosed hy placenta count, twin-peak-sign, T-sign, partitive membrane＇s existence and thickness. For those different gestational weeks, the accuracy is 100 %, 83.8%, 51.9% respectively （corresponding P〉 0. 05,P〉0. 05,P〈0. 05）. Conclusion： The 8--10 and 11-14 gestational weeks are the best time to determine the chorionicity of twin pregnancy with ultrasonography.

关 键 词：超声检查 产前 双胎 绒毛膜性 

分 类 号：R714.56[医药卫生—妇产科学]