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前置胎盘传统定义为胎盘附着于子宫下段,其严重性取决于胎盘边缘与子宫下段的关系,这也是临床处理措施不同的主要依据。B超是诊断的金标准,但目前缺乏大规模、设计严密的研究以确定前置胎盘的超声分类或临床处理。为了研究妊娠晚期前置胎盘的超声诊断结果与分娩方式的关系,回顾
The traditional definition of placenta previa placenta attached to the lower uterine segment, the severity depends on the relationship between the edge of the placenta and the lower uterine segment, which is also the main basis for different clinical treatment measures. B-ultrasound is the gold standard for diagnosis, but there is a lack of large-scale, well-designed studies to determine the ultrasound classification or clinical management of placenta previa. In order to investigate the relationship between sonographic findings and mode of delivery in placenta previa in late pregnancy, review