Ultrasound examination in antenatal diagnosis of placenta accreta spectrum

Abstract

The rise in caesarean section rates worldwide has led to a great increase in placenta accreta spectrum cases. Accurate diagnostics of placenta accreta before delivery is still difficult, as one-half to two-thirds of placenta accreta cases remain undiagnosed until delivery. Domestic and foreign sources use the diagnostic accuracy of ultrasonography (US) as the most commonly used method for placenta accreta image because of its inexpensiveness, non invasiveness, and rapidness. In this review, we highlighted the possibilities of prenatal ultrasound diagnosis of placenta accreta. Diagnostic accuracy may be reduced due to posterior wall placenta location and a higher body mass index (BMI). US and MRI are highly specific and useful in diagnosing or ruling out placenta accreta. Unlike MRI, the accuracy of ultrasound depends on the qualification, and therefore single-center studies often overestimate the accuracy of ultrasound. It is necessary to continue studying diagnostic methods for placenta accreta in order to select logical obstetric tactics for managing pregnant women with this pathology.