The gravid uterus: MR imaging and reporting of abnormal placentation

Abdom Radiol (NY). 2016 Dec;41(12):2411-2423. doi: 10.1007/s00261-016-0752-5.


Appropriate placentation is critical to maternal and fetal outcomes. Abnormal placentation, including placenta previa and morbidly adherent placenta, is increasing in incidence and is associated with multiple risk factors including advanced maternal age and history of prior cesarean delivery. Magnetic resonance imaging (MRI) is increasingly used in assessing the type and extent of abnormal placentation, often leading to modifications in surgical approach. Here, we review the MRI features and appropriate reporting of placenta previa and the placenta accreta spectrum.

Keywords: MRI; Morbidly adherent placenta; Placenta accreta; Placenta previa.

Publication types

  • Review

MeSH terms

  • Diagnosis, Differential
  • Female
  • Humans
  • Magnetic Resonance Imaging / methods
  • Placenta Diseases / diagnostic imaging*
  • Placenta Diseases / pathology
  • Placenta Diseases / surgery
  • Pregnancy
  • Risk Factors