MRI检查在胎儿中枢神经系统先天发育异常中的诊断价值  

Value of MRI in Diagnosis of Fetal Central Nervous System Abnormalities

作　　者：尚滔[1] 眭贺[1] 毛巨江 沈桂权[1] 焦俊[1] 

机构地区：[1]贵州医科大学附院影像科,贵州贵阳550004

出　　处：《贵阳医学院学报》2015年第11期1229-1232,共4页Journal of Guiyang Medical College

摘　　要：目的:探讨磁共振成像(MRI)检查在胎儿中枢神经系统先天发育异常中的诊断价值。方法:回顾性比较分析49例经临床随访确诊的中枢神经系统先天发育异常胎儿的侧脑室扩大、脑积水、胼胝体发育不全等MRI异常影像和超声检查资料。结果:49例胎儿MRI检查成功率100%(49/49),图像质量均能满足诊断要求,检查结束后49例孕妇无不适症状;MRI检查49例胎儿中,磁共振检出中枢神经系统先天发育异常47例,检出率95.99%;超声检出40例,检出率81.63%,二者检出率比较,差异有统计学意义(χ2=5.018,P=0.025);胎儿头颅MRI还可发现中枢神经以外其它部位病变。结论:MRI用于胎儿中枢神经系统先天发育异常的产前诊断优于超声检查。Objective： To explore the value of MRI in pernatal diagnosis of central nervous system abnormalities. Methods： MRI finings of 49 fetuses with dilatation of the lateral ventricles,hydrocephalus,corpus callosum hypoplasia and so on were analyzed,as well as thier ultrasound results and pregnancy outcome. Results： Success MRI detection rate of 49 fetuses was 100%. Image quality met the diagnostic requirements,and the pregnant women didn＇t have discomfort symptoms after examination.The central nervous system abnormality rate detected by MRI was 95. 99%（ 47 /49） and that detected by ultrasound was 81. 63%（ 40 /49）,the differeces were significant（ P〈0. 05）. Fetal cranial MRI could find other part lesions in addition to central nervous system lesions. Conclusion： MRI in pernatal diagnosis of central nervous system abnormalities is superior to ultrasound.

关 键 词：胎儿 磁共振成像 神经系统畸形 产前诊断 超声 妊娠结局 

分 类 号：R445.2[医药卫生—影像医学与核医学] R714.5[医药卫生—诊断学]