胎儿心脏磁共振成像在评估右位主动脉弓和右位动脉导管胎儿中的应用
Utility of fetal cardiac magnetic resonance imaging to assess fetuses with right aortic arch and right ductus arteriosus.
作者信息
Dong Su-Zhen, Zhu Ming
机构信息
a Department of Radiology , Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine , Shanghai , China.
出版信息
J Matern Fetal Neonatal Med. 2018 Jun;31(12):1627-1631. doi: 10.1080/14767058.2017.1322951. Epub 2017 May 7.
OBJECTIVE
To evaluate the utility of fetal cardiac magnetic resonance imaging (MRI) to diagnose right aortic arch (RAA) with right ductus arteriosus.
METHODS
This retrospective study included six fetuses with right aortic arch and right ductus arteriosus. The six fetal cases were examined using a 1.5-T magnetic resonance unit. The steady-state free precession (SSFP) and single-shot turbo spin echo (SSTSE) sequences were used to evaluate the fetal heart and airway. The gestational age of the six fetuses ranged from 22 to 35 weeks (mean, 26.5 weeks). The age of the pregnant women ranged from 23 to 40 years (mean 31 years).
RESULTS
Fetal cardiac MRI diagnosed the six fetal cases with RAA with right ductus arteriosus correctly. Among the six fetuses, four were associated with other congenital heart defects. In three of six cases, the diagnoses established using prenatal echocardiography (echo) was correct when compared with postnatal diagnosis.
CONCLUSIONS
Fetal cardiac MRI is a useful complementary tool to assess fetuses with RAA and right ductus arteriosus.
目的
评估胎儿心脏磁共振成像（MRI）对诊断右位主动脉弓（RAA）合并右位动脉导管的效用。
方法
这项回顾性研究纳入了6例右位主动脉弓合并右位动脉导管的胎儿。这6例胎儿病例均使用1.5-T磁共振设备进行检查。采用稳态自由进动（SSFP）序列和单次激发快速自旋回波（SSTSE）序列评估胎儿心脏和气道。6例胎儿的孕周为22至35周（平均26.5周）。孕妇年龄为23至40岁（平均31岁）。
结果
胎儿心脏MRI正确诊断出这6例右位主动脉弓合并右位动脉导管的胎儿病例。6例胎儿中有4例合并其他先天性心脏缺陷。6例中的3例，产前超声心动图（超声）诊断与产后诊断相比是正确的。
结论
胎儿心脏MRI是评估右位主动脉弓合并右位动脉导管胎儿的一种有用的补充工具。
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