Abstract: With the increasing incidence of placenta accrete spectrum disorders，the high rates of uterine resection and postpartum hemorrhage and the threat to the safety of maternal and infant life，make it very important and urgent to perform prenatal recognition，diagnosis and appropriate perioperative management. This paper summarizes the prenatal diagnosis of placenta implantation by ultrasound and magnetic resonance imaging.

Key words: placenta implantation, placenta accrete spectrum disorders, ultrasound, magnetic resonance imaging

摘要： 随着胎盘植入性疾病发病率的上升，其高子宫切除率、高产后出血率及对母婴生命安全的威胁，使产前识别、诊断以及恰当的围手术期处理显得极为重要和迫在眉睫。文章将超声及磁共振成像等影像学指标对胎盘植入的产前诊断进行概述。

关键词: 胎盘植入, 胎盘植入性疾病, 超声, 磁共振