磁共振在胎儿各系统异常诊断中的应用价值

The application value of MRI in the diagnosis of fetal system abnormalities

目的探讨磁共振对胎儿各系统异常诊断中的应用价值。方法产前超声检出胎儿异常,2周内经产前磁共振检查,根据超声与磁共振影像结果用差异性及一致性,分为MRI符合超声诊断、部分符合、补充信息及更正信息进行数据分析。结果 216例单胎中共有234处异常,总体符合率61.53%(144/234),部分符合率7.27%(17/234),补充信息率17.09%(40/234),更正信息率14.10%(33/234)。结论胎儿MRI与产前超声作为产前筛查胎儿出生缺陷互补影像学检查,当超声筛查受限不利因素或诊断不明确,尤其在中枢神经系统、唇腭裂、呼吸系统、消化系统、泌尿生殖系统等异常可酌情选择MRI评估胎儿病情,为产前咨询和管理以及外科医生手术评估提供依据,最大化减少出生缺陷及改善优生优育。

Objective To discusses the application value of magnetic resonance imaging in the diagnosis of fetal system abnormalities.Methods Prenatal ultrasonic detection of fetal abnormalities,prenatal MRI performed in 2weeks,according to the results of ultrasonography and magnetic resonance imaging with difference and consistency,It is divided into MRI in ultrasound diagnosis,the partial coincidence,the supplemental information and the correction information for the data analysis.Results 216 cases of single pregnancy have a total of 234 abnormalities,the overall coincidence rate 61.53%（144/234）,partial coincidence rate 7.27%（17/234）,supplemental information rate 17.09%（40/234）,correction information rate was 14.10%（33/234）.Conclusions Fetal MRI with prenatal ultrasound as a complementary imaging examinations,prenatal screening of fetal birth defects when limited ultrasound screening for the diagnosis of unfavorable factors or unclear,especially in the central nervous system,cleft lip and palate,respiratory system,digestive system,urogenital system,such as abnormal MRI assessment can be discretionary choice fetal condition,and surgeons for prenatal counseling and management evaluation,maximize reduce birth defects and improving the eugenics.