Department of Radiology, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA.
Department of Radiology, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA.
Magn Reson Imaging Clin N Am. 2020 Nov;28(4):509-516. doi: 10.1016/j.mric.2020.06.002. Epub 2020 Sep 17.
MRI is a powerful diagnostic tool with excellent soft tissue contrast that uses nonionizing radiation. These advantages make MRI an appealing modality for imaging the pregnant patient; however, specific risks inherent to the magnetic resonance environment must be considered. MRI may be performed without and/or with intravenous contrast, which adds further fetal considerations. The risks of MRI with and without intravenous contrast are reviewed as they pertain to the pregnant or lactating patient and to the fetus and nursing infant. Relevant issues for gadolinium-based contrast agents and ultrasmall paramagnetic iron oxide particles are reviewed.
磁共振成像（MRI）是一种强大的诊断工具，具有出色的软组织对比度，且使用非电离辐射。这些优势使得 MRI 成为一种有吸引力的成像方式，适用于孕妇；然而，磁共振环境固有的特定风险必须加以考虑。MRI 可以在不使用和/或使用静脉造影剂的情况下进行，这会增加对胎儿的考虑。本文回顾了使用和不使用静脉造影剂的 MRI 对孕妇、哺乳期妇女以及胎儿和哺乳期婴儿的相关风险。还回顾了钆基造影剂和超顺磁氧化铁纳米颗粒的相关问题。
