A proposal for standardized magnetic resonance imaging (MRI) descriptors of abnormally invasive placenta (AIP) – From the International Society for AIP - 05/06/19

Doi : 10.1016/j.diii.2019.02.004

O. Morel ^a,^⁎ , S.L. Collins ^b, J. Uzan-Augui ^c,^d, G. Masselli ^e, J. Duan ^a, A.-C. Chabot-Lecoanet ^a, T. Braun ^f, J. Langhoff-Roos ^g, P. Soyer ^c,^d,^e, F. Chantraine ^h
for the International Society for Abnormally Invasive Placenta (IS-AIP)
^a Department of Obstetrics & Gynecology, centre hospitalier régional universitaire de Nancy, Université de Lorraine, CIC-IT, IADI, Université de Lorraine, 54000 Nancy, France
^b University of Oxford, Nuffield Department of Obstetrics & Gynecology, The Fetal Medicine Unit, Oxford, UK
^c Department of Radiology, Hôpital Cochin, AP–HP, 75014 Paris, France
^d University Descartes Paris 5-Sorbonne Paris-Cité, 75006 Paris, France
^e Department of Radiology, University of Roma, Roma, Italy
^f Department of Obstetrics, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
^g Department of Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
^h Department of Obsterics and Gynecology, CHR Citadelle, University of Liège, Liège, Belgium

^⁎Corresponding author.

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Abstract

Abnormally invasive placenta (AIP) is used to describe a placenta that does not separate naturally after delivery and cannot be extirpated without causing abnormally high blood loss. Recently, the use of a standardized terminology for descriptors of AIP signs seen on ultrasound has been prosed but to date no such unified descriptors have been developed for magnetic resonance imaging (MRI). The purpose of this paper is to propose a unified terminology based on a consensus opinion from the members of the International Society for AIP (IS-AIP) that include obstetricians, gynecologists, radiologists, pathologists, anesthesiologists and basic science researchers. We assume that using these standardized MRI descriptors for AIP will be useful for clinical use, education, teaching and future research projects, thus assumably improving care of patients with this condition. In addition, using a uniform terminology for AIP should become the first step of a standardized MRI report.

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Keywords : Abnormally invasive placenta (AIP), Magnetic resonance imaging (MRI), International Society for AIP