Pelvic MR imaging in pregnancy

Magnetic resonance imaging (MRI) is the preferred cross-sectional imaging modality for pelvic pathology in pregnancy given the well-established risks of ionising radiation to the fetus with computed tomography. While ultrasound, a safe and readily available imaging tool, remains the primary imaging investigation in pregnancy, it can be limited by overlying structures, bowel gas and the gravid uterus. MRI offers the benefits of multiplanar imaging with a wide field of view and high intrinsic soft tissue contrast, and does so without the risks of ionising radiation. This article aims to discuss the role of pelvic MRI in pregnancy and to illustrate its broad range of applications in pregnancy-related pathologies from pre-conception to the antenatal and post-partum period.

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