Reliability of ultrasound and colour doppler in the antenatal diagnosis of morbidly adherent placenta in placenta praevia

Background: Morbidly adherent placenta is a life threatening condition that requires multidisciplinary approach for management. Women presenting with placenta praevia have become the highest risk for abnormal placental adherence. Aim: Aim of the present study is to evaluate the efficacy of ultrasound and colour Doppler in the antenatal diagnosis of morbidly adherent placenta in women presenting with placenta praevia. Materials and methods: This was a prospective study conducted on patients with persistent placenta praevia who underwent transabdominal B mode and colour Doppler ultrasound evaluation in the third trimester during the period of May, 2015 to May, 2017. The imaging findings were compared with the final diagnosis at the time of delivery and at pathological examination. Results: In the present study, there were a total of 24 patients of morbidly adherent placenta with an incidence of 1.17 per 1000 pregnancies. Previous caesarean section with placenta praevia was the main risk factor for placental adherence. Conclusion: Ultrasound and colour Doppler have a fairly good sensitivity for prenatal diagnosis of placenta accrete.