|ECR 2019 / C-2080|
|Prenatal planning of placenta previa: diagnostic accuracy of a MRI-based model for the placental invasion and clinical outcome prediction|
Aims and objectives
Placenta Accreta Spectrum (PAS) is the general term applied to abnormal adherence of the placental trophoblast to the uterine placenta. The spectrum includes the attachment of the placenta to myometrium without intervening of decidua (placenta accreta), the invasion of myometrium (placenta increta) and infiltration of the surrounding organs through the uterine serosa (placenta percreta).
Previous cesarean section and placenta previa are the two most important risk factors. Pregnancies with invasive placenta are more likely to have preterm delivery and develop potentially fatal massive bleeding.
Up to 40-60% of the peripartum hysterectomies are due to invasive placenta.
Ultrasound (US) still represents the first line imaging modality for the antenatal care, but it is burdened with some limits. For these reasons, a growing interest towards magnetic resonance (MR) imaging has been developed. MR has the advantage of high soft tissue contrast resolution and provides a panoramic view of the tissues and organs surrounding the uterus. It represents a complementary tool in cases with equivocal ultrasound findings.
The aim of our study was to investigate the diagnostic accuracy of MRI for PAS diagnosis and clinical outcome prediction in women with placenta previa, using a novel MRI-based predictive model.
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ECR 2019 / C-1865
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