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孕早期超声在测量胎儿颅内透明层及后颅窝厚度、预测后颅窝病变中的应用 被引量:6

Prediction of fetal posterior cranial fossa lesions by ultrasonography at 11~13+6 weeks of gestation with IT and CM
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摘要 目的:通过孕早期超声对胎儿颅内透明层(IT)及后颅窝(CM)的测量,以达到筛查胎儿开放性脊柱裂(OSB)、Dandy-Walker(D-W)畸形的目的。方法:超声获取7718例孕11~13^+6周胎儿头部正中矢状切面3D容量数据,检测胎儿颈后透明层(NT)、IT、CM等指标。孕中期行超声结构筛查及随访,将患儿分为正常组7708例、OSB组9例和D-W畸形组1例,比较3组IT、CM的区别。结果:正常组IT值0.60~2.40mm,CM值0.60~2.60mm,正常组IT、CM的显示率为95.99%;OSB组7例无法清晰显示IT,2例IT值<0.60mm;D-W畸形组1例IT不显示,CM值3.60mm。结论:孕早期OSB及D-W畸形胎儿正中矢状面CM结构较正常胎儿发生相应改变。孕11~13+6周胎儿的IT不显示是早期诊断OSB的重要线索;CM增宽可能预示着D-W畸形的风险增加。
出处 《中国中西医结合影像学杂志》 2019年第5期537-538,共2页 Chinese Imaging Journal of Integrated Traditional and Western Medicine
基金 佛山市卫生和计生局医学科研课题项目(20180115)
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