Publication: Magnetic Resonance Imaging of Placenta Accreta Spectrum: A Step-by-Step Approach
Issued Date
2021-02-01
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ISSN
20058330
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2-s2.0-85100280175
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Mahidol University
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SCOPUS
Bibliographic Citation
Korean journal of radiology. Vol.22, No.2 (2021), 198-212
Suggested Citation
Sitthipong Srisajjakul, Patcharin Prapaisilp, Sirikan Bangchokdee Magnetic Resonance Imaging of Placenta Accreta Spectrum: A Step-by-Step Approach. Korean journal of radiology. Vol.22, No.2 (2021), 198-212. doi:10.3348/kjr.2020.0580 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/78475
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Title
Magnetic Resonance Imaging of Placenta Accreta Spectrum: A Step-by-Step Approach
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Abstract
Placenta accreta spectrum (PAS) is an abnormal placental adherence or invasion of the myometrium or extrauterine structures. As PAS is primarily staged and managed surgically, imaging can only guide and facilitate diagnosis. But, imaging can aid in preparations for surgical complexity in some cases of PAS. Ultrasound remains the imaging modality of choice; however, magnetic resonance imaging (MRI) is required for evaluation of areas difficult to visualize on ultrasound, and the assessment of the extent of placenta accreta. Numerous MRI features of PAS have been described, including dark intraplacental bands, placental bulge, and placental heterogeneity. Failure to diagnose PAS carries a risk of massive hemorrhage and surgical complications. This article describes a comprehensive, step-by-step approach to diagnostic imaging and its potential pitfalls.