OBJECTIVE: Magnetic Resonance Imaging (MRI) of placental invasion has been part of clinical practice for many years. The possibility of being better able to assess placental vascularization and function using MRI has multiple potential applications. This review summarises up-to-date research on placental function using different MRI modalities.

METHOD: We discuss how combinations of these MRI techniques have much to contribute to fetal conditions amenable for therapy such as singletons at high risk for FGR; and monochorionic twin pregnancies for planning surgery and counselling for selective growth restriction and transfusion conditions.

RESULTS: The whole placenta can easily be visualized on MRI, with a clear boundary against the amniotic fluid, and a less clear placental-uterine boundary. Contrasts such as Diffusion Weighted Imaging, Relaxometry, Blood Oxygenation Level Dependent MRI and flow and metabolite measurement by Dynamic Contrast Enhanced MRI, Arterial Spin Labeling or spectroscopic techniques are contributing to our wider understanding of placental function.

CONCLUSION: The future of placental MRI is exciting, with the increasing availability of multiple contrasts and new models that will boost the capability of MRI to measure oxygen saturation and placental exchange, enabling examination of placental function in complicated pregnancies.

Original languageEnglish
JournalPrenatal diagnosis
Early online date15 Jul 2019
Publication statusPublished - 2019


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