MAGNETIC RESONANCE EVALUATION OF INVASIVE PLACENTA – OUR EXPERIENCE

Abstract

Introduction: Placenta accreta (PA) includes various types of abnormal placentation in which chorionic villi attach directly to or invade he myometrium. There is a rising trend of placenta accreta owing to increased number of primary and repeat Caesarean sections. Accurate and timely identification of affected pregnancies allows optimal obstetric management to reduce maternal morbidity and mortality. The availability of conservative treatment modalities for the management of post partum hemorrhage arising from the same mandates the use of magnetic resonance imaging (MRI) to precisely evaluate the degree of placental invasion so as to further guide the treatment options. Materials and Methods: In two years observational cross sectional study, 18 pregnant females between age group 15-40 years were subjected to MRI pelvis and MRI findings were noted. Result : Placenta accrete vera was the most common type found in our study. Patients with placenta previa and previous Caesarean section were at highest risk. Intraplacental bands, heterogenous placenta, lumpy placental contour were the most commonly observed findings. Conclusion: MRI is very useful for accurate evaluation of placenta accreta particularly when USG findings are ambiguous or when there is a posterior placenta. There is increased incidence of placenta accreta with multiparity, placenta previa and history of previous Caesarean sections.