Resolution of a Low-Lying Placenta and Placenta Previa Diagnosed at the Midtrimester Anatomy Scan

摘要

Placenta previa or low-lying placenta is identified on a significant number of midtrimester ultrasounds (USs), and the large majority of these resolve by term. While guidelines recommend follow-up US at 32 weeks' gestation to assess for resolution of midtrimester previa, limited data exist to support this recommendation.