Society of Abdominal Radiology (SAR) and European Society of Urogenital Radiology (ESUR) joint consensus statement for MR imaging of placenta accreta spectrum disorders

Priyanka Jha, Liina Pōder, Charis Bourgioti, Nishat Bharwani, Sara Lewis, Amita Kamath, Stephanie Nougaret, Philippe Soyer, Michael Weston, Rosa P. Castillo, Aki Kido, Rosemarie Forstner, Gabriele Masselli

Research output: Contribution to journalArticle

Abstract

Objectives: This study was conducted in order to establish the joint Society of Abdominal Radiology (SAR) and European Society of Urogenital Radiology (ESUR) guidelines on placenta accreta spectrum (PAS) disorders and propose strategies to standardize image acquisition, interpretation, and reporting for this condition with MRI. Methods: The published evidence-based data and the opinion of experts were combined using the RAND–UCLA Appropriateness Method and formed the basis for these consensus guidelines. The responses of the experts to questions regarding the details of patient preparation, MRI protocol, image interpretation, and reporting were collected, analyzed, and classified as “recommended” versus “not recommended” (if at least 80% consensus among experts) or uncertain (if less than 80% consensus among experts). Results: Consensus regarding image acquisition, interpretation, and reporting was determined using the RAND–UCLA Appropriateness Method. The use of a tailored MRI protocol and standardized report was recommended. Conclusions: A standardized imaging protocol and reporting system ensures recognition of the salient features of PAS disorders. These consensus recommendations should be used as a guide for the evaluation of PAS disorders with MRI. Key Points: • MRI is a powerful adjunct to ultrasound and provides valuable information on the topography and depth of placental invasion. • Consensus statement proposed a common lexicon to allow for uniformity in MRI acquisition, interpretation, and reporting of PAS disorders. • Seven MRI features, namely intraplacental dark T2 bands, uterine/placental bulge, loss of low T2 retroplacental line, myometrial thinning/disruption, bladder wall interruption, focal exophytic placental mass, and abnormal vasculature of the placental bed, reached consensus and are categorized as “recommended” for diagnosing PAS disorders.

Original languageEnglish (US)
Pages (from-to)2604-2615
Number of pages12
JournalEuropean Radiology
Volume30
Issue number5
DOIs
StatePublished - May 1 2020

Keywords

  • Consensus
  • Magnetic resonance imaging
  • Placenta accreta
  • Placenta diseases

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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    Jha, P., Pōder, L., Bourgioti, C., Bharwani, N., Lewis, S., Kamath, A., Nougaret, S., Soyer, P., Weston, M., Castillo, R. P., Kido, A., Forstner, R., & Masselli, G. (2020). Society of Abdominal Radiology (SAR) and European Society of Urogenital Radiology (ESUR) joint consensus statement for MR imaging of placenta accreta spectrum disorders. European Radiology, 30(5), 2604-2615. https://doi.org/10.1007/s00330-019-06617-7