E.B. Singleton Department of Pediatric Radiology, Texas Children's Hospital, Baylor College of Medicine, 6701 Fannin St, Suite 470, Houston, TX 77030, USA.
Radiographics. 2012 Jul-Aug;32(4):1067-84. doi: 10.1148/rg.324115155.
Fetal magnetic resonance (MR) imaging plays a number of roles in the evaluation and management of congenital diaphragmatic hernia (CDH). Fetal MR imaging has proved valuable for anatomic assessment, determination of the specific type of CDH on the basis of which organs are involved and the effect of the hernia contents on adjacent structures, evaluation and exclusion of hernia-related complications and associated malformations (some of which may suggest an underlying syndrome), calculation of lung volume and liver herniation measurements, and calculation of the diameters of the pulmonary arteries and aorta. All of these parameters may aid the fetal care team in terms of prenatal counseling and perinatal planning. In addition, fetal MR imaging plays a role in guiding experimental fetal therapy (eg, tracheal balloon occlusion), with preliminary results showing an increase in observed-to-expected lung-to-head ratio and total fetal lung volume during the tracheal occlusion period, leading to improved neonatal survival.
胎儿磁共振成像（MR）在评估和管理先天性膈疝（CDH）中发挥了多种作用。胎儿 MR 成像已被证明对解剖评估、根据受累器官确定 CDH 的具体类型以及疝内容物对邻近结构的影响、评估和排除疝相关并发症和相关畸形（其中一些可能提示潜在综合征）、计算肺容积和肝脏疝出测量值以及计算肺动脉和主动脉直径都有价值。所有这些参数都可能有助于胎儿护理团队进行产前咨询和围产期计划。此外，胎儿磁共振成像在指导实验性胎儿治疗（例如，气管球囊阻塞）中发挥作用，初步结果显示，在气管阻塞期间，观察到的与预期的肺与头比和总胎儿肺容积增加，从而提高了新生儿的存活率。
