Shinmoto H, Kashima K, Yuasa Y, Tanimoto A, Morikawa Y, Ishimoto H, Yoshimura Y, Hiramatsu K
Departments of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
Radiographics. 2000 Sep-Oct;20(5):1227-43. doi: 10.1148/radiographics.20.5.g00se071227.
The recent popularity of prenatal magnetic resonance (MR) imaging has been associated with the development of ultrafast MR imaging techniques such as the single-shot fast spin-echo sequence. However, the majority of previous reports have concerned the fetal central nervous system (CNS) and chest disorders. MR imaging can demonstrate non-CNS fetal anatomy and pathologic conditions clearly. With its excellent tissue contrast, MR imaging provides information that supplements that provided by ultrasonography (US), especially in cases of neck, chest, and gastrointestinal lesions. Because of its large field of view, MR imaging allows evaluation of the relationship between a large lesion and adjacent structures. MR imaging should be considered if the diagnosis of a suspected non-CNS lesion is unclear at fetal US. MR imaging plays an important complementary role to US in cases of non-CNS fetal lesions and will be further accepted for fetal imaging in the future.
近期产前磁共振（MR）成像的普及与诸如单次激发快速自旋回波序列等超快MR成像技术的发展有关。然而，之前的大多数报告都关注胎儿中枢神经系统（CNS）和胸部疾病。MR成像能够清晰地显示非CNS胎儿的解剖结构和病理状况。凭借其出色的组织对比度，MR成像提供的信息可补充超声检查（US）所提供的信息，尤其是在颈部、胸部和胃肠道病变的情况下。由于其视野广阔，MR成像能够评估大病变与相邻结构之间的关系。如果在胎儿超声检查中对疑似非CNS病变的诊断不明确，就应考虑进行MR成像。在胎儿非CNS病变的情况下，MR成像对超声检查起着重要的补充作用，并且在未来将被进一步用于胎儿成像。
