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Congress: ECR26
Poster Number: C-13882
Type: Poster: EPOS Radiologist (educational)
Authorblock: N. Jacome, S. Ramirez Figueroa, C. A. ARIAS; Bucaramanga/CO
Disclosures:
Nathalia Jacome: Nothing to disclose
Santiago Ramirez Figueroa: Nothing to disclose
CARLOS ANDRES ARIAS: Nothing to disclose
Keywords: Anatomy, Obstetrics (Pregnancy / birth / postnatal period), MR, Education, Obstetrics
Learning objectives To recognize the vital role of the placenta in normal gestation and its impact on severe obstetric complications, establishing the clinical necessity for advanced imaging. To review the MRI appearance of the placenta, myometrial interface, and extrauterine cavity under normal conditions to establish a reliable anatomical baseline. To analyze illustrative cases to differentiate between normal anatomy and key findings of the placenta accreta spectrum. To bridge the gap between clinical suspicion and definitive imaging diagnosis, providing radiologists with specific criteria to reduce diagnostic...
Read more Background This educational exhibit is structured around placental MRI, emphasizing study protocol, normal anatomy, and systematic interpretation. A three-compartment model placenta, myometrial interface, and extrauterine cavity was applied to organize the assessment and highlight key imaging findings. Representative clinical cases, selected from a high-complexity diagnostic imaging center in Bucaramanga, Colombia, are used to illustrate normal variants and the most frequent pathologies. Other cases are from literature.  Emphasis is placed on imaging sequences, acquisition timing, and diagnostic pearls that improve reproducibility and...
Read more Findings and procedure details Placental Anatomy and Normal ImplantationThe placenta is a complex, transient organ essential for fetal development, originating from the differentiation of the blastocyst into the trophoblast and inner cell mass. By the end of the first trimester, the definitive placental disc is formed, characterized by approximately 15–20 functional units known as cotyledons. Anatomically, it consists of the fetal surface (chorionic plate) and the maternal surface (decidua basalis).The placental–uterine interface is a critical functional zone where the decidua separates the placental villi...
Read more Conclusion Placental MRI serves as a high-precision diagnostic tool, offering radiologists advanced options to characterize complex placental pathologies beyond conventional ultrasound. By implementing a structured three-compartment assessment and adhering to SAR-ESUR standardized terminology, clinicians can effectively avoid common pitfalls—such as bladder-related artifacts or normal anatomical variants—that often lead to diagnostic errors. This comprehensive approach enhances diagnostic confidence and provides a detailed anatomical map, ensuring a clear and structured report. Ultimately, it allows for safer, individualized management and optimized surgical planning, establishing...
Read more Personal information Authors & Affiliations: Nathalia Jácome-Pérez. . Fourth-year Resident in Radiology and Diagnostic Imaging, Universidad de Santander (UDES), Bucaramanga, Colombia. https://orcid.org/0000-0003-0883-6008 Santiago Ramirez Figueroa. Physician and Surgeon, Universidad Industrial de Santander (UIS), Bucaramanga, Colombia. https://orcid.org/0000-0001-7577-8237 Carlos Andrés Arias. Virtual Fellowship in Prostate Multiparametric MRI, UROIMA–QUODEMY, Barcelona, Spain. Hospital Universitario de Bucaramanga Los Comuneros. Instituto de Diagnóstico Médico (IDIME), Body MRI Group. Faculty Member, Body MRI Section, Universidad de Santander (UDES), Bucaramanga, Colombia.
Read more References Concatto NH, Westphalen SS, Vanceta R, Schuch A, Luersen GF, Ghezzi CLA. Magnetic resonance imaging findings in placenta accreta spectrum disorders: pictorial essay. Radiol Bras. 2022;55(3):181-187. Fadl S, Moshiri M, Fligner CL, Katz DS, Dighe M. Placental Imaging: Normal Appearance with Review of Pathologic Findings. Radiographics. 2017;37(3):979-998.  Andescavage N, Kapse K, Lu YC, Barnett SD, Jacobs M, Gimovsky AC, Ahmadzia H, Quistorff J, Lopez C, Andersen NR, Bulas D, Limperopoulos C. Normative placental structure in pregnancy using quantitative Magnetic Resonance Imaging. Placenta....
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