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Congress: ECR24
Poster Number: C-24309
Type: EPOS Radiologist (educational)
DOI: 10.26044/ecr2024/C-24309
Authorblock: E. A. Cadag, S. D. L. Gosiaco, S. G. F. Estanislao, K. R. T. Yu, S. S. Chny, J. V. A. Tamayo; Taguig City/PH
Disclosures:
Eazels Abrantes Cadag: Nothing to disclose
Stacey Danica Lim Gosiaco: Nothing to disclose
Seth Gabriel Ferrer Estanislao: Nothing to disclose
Kevin Ryan Ting Yu: Nothing to disclose
Stacy Sua Chny: Nothing to disclose
Jose Victor Abad Tamayo: Nothing to disclose
Keywords: Genital / Reproductive system female, MR, Chemoembolisation, Obstetrics
Learning objectives To provide radiologists with a simple guide on how to recognize key features of Placenta Accreta Spectrum (PAS) on Magnetic Resonance Imaging (MRI)  To aid radiologists in recognizing and reporting associated findings in PAS To present cases illustrating the MRI findings in PAS
Read more Background Placenta Accreta Spectrum (PAS) disorders encompass various degrees of pathologic placental implantation and are classified on the basis of the depth of myometrial invasion.  [fig 1]  Placenta accreta is the mildest and most common among the PAS disorders wherein villi only attach to the myometrium without invasion of the underlying muscle. Placenta increta is the intermediate form with partial invasion of the myometrium. The most severe form is placenta percreta where the villi penetrate through the entire myometrium or even beyond the serosa...
Read more Findings and procedure details This exhibit employs a retrospective analysis of the MRI scans done at our institution for evaluating PAS disorders and their associated imaging findings. We utilize 1.5 and 3.0 Tesla scanners with a multichannel, phased-array surface coil. Overall, 3.0 Tesla MRI provides greater signal intensity and spatial resolution, allowing for evaluation of smaller details which may better delineate the uteroplacental interface for the evaluation of foci of invasion. Key sequences are detailed in Figure 2. [fig 2]  DWI can be used to delineate placenta...
Read more Conclusion Though ultrasound remains the primary imaging modality to diagnose PAS disorders, the role of MRI is expanding. The acronym “UTERINE” may help radiologists to easily recall the key features of PAS. The extent and location of myometrial invasion may also be determined on MRI for optimal treatment and surgery.
Read more References Morlando M, Sarno L, Napolitano R, et al. Placenta accreta: incidence and risk factors in an area with a particularly high rate of cesarean section. Acta Obstet Gynecol Scand. 2013;92(4):457-460. doi:10.1111/aogs.12080 Patel-Lippmann KK, Planz VB, Phillips CH, Ohlendorf JM, Zuckerwise LC, Moshiri M. Placenta Accreta Spectrum Disorders: Update and Pictorial Review of the SAR-ESUR Joint Consensus Statement for MRI. Radiographics. 2023;43(5):e220090. doi:10.1148/rg.220090 Blaicher W, Brugger PC, Mittermayer C, et al. Magnetic resonance imaging of the normal placenta. Eur J Radiol 2006;57(2):256–260. Jha P,...
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