title: MRI of Placenta Accreta, Placenta Increta, and Placenta Percreta: Pearls and Pitfalls.
abstract: OBJECTIVE
  The purpose of this article is to provide a primer for radiologists performing MRI for suspected placenta accreta, illustrating normal and abnormal findings and diagnostic pitfalls. Appropriate examination indications and recommendations for optimizing image acquisition and interpretation are summarized.
  
  
  CONCLUSIONS
  MRI increases the accuracy of the workup of high-risk patients and aids in multidisciplinary delivery planning to improve maternal outcome. Reader accuracy and confidence require adherence to examination performance, image interpretation criteria, and awareness of common pitfalls.
authors.affiliation: 1 Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA 02114.
authors.forename: Aoife
authors.initials: A
authors.lastname: Kilcoyne
authors.affiliation: 2 Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
authors.forename: Anuradha S
authors.initials: AS
authors.lastname: Shenoy-Bhangle
authors.affiliation: 3 Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
authors.forename: Drucilla J
authors.initials: DJ
authors.lastname: Roberts
authors.affiliation: 4 Gillette Center for Gynecologic Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
authors.forename: Rachel Clark
authors.initials: RC
authors.lastname: Sisodia
authors.affiliation: 1 Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA 02114.
authors.forename: Debra A
authors.initials: DA
authors.lastname: Gervais
authors.affiliation: 1 Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA 02114.
authors.forename: Susanna I
authors.initials: SI
authors.lastname: Lee
mesh_terms: D000465:Algorithms; D003937:Diagnosis, Differential; D003951:Diagnostic Errors / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D056888:Patient Positioning / Q000379:methods*; D010921:Placenta Accreta / Q000000981:diagnostic imaging*; D011247:Pregnancy; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
keywords: MRI; abnormal placentation; placenta accreta; placenta increta; placenta percreta