【摘要】目的：探析产前应用超声诊断凶险型前置胎盘合并胎盘植入的临床效果。方法：选择2020年11月—2023年5月我院收治的疑似合并胎盘植入的凶险型前置胎盘患者71例作为研究对象，所有的患者均于产前实施超声诊断，以分娩后病理诊断结果为金标准，观察产前超声诊断凶险型前置胎盘合并胎盘植入的诊断效能；然后根据金标准的结果，将患者分为植入组和未植入组，比较两组超声声像图特征。结果：产前超声诊断凶险型前置胎盘合并胎盘植入的准确率是95.77%、特异度是95.45%、敏感度是96.30%。经阴道超声对边缘型、部分型、完全型等不同类型前置胎盘的总检出率高于经腹部超声，差异有统计学意义(P<0.05)。植入组子宫肌层厚度<2mm、胎盘增厚、胎盘后间隙消失、宫颈状况膨大等发生率均高于未植入组，差异有统计学的意义(P<0.05)。结论：产前应用超声诊断凶险型前置胎盘合并胎盘植入的效果显著，诊断的准确率、特异度和敏感度均非常高，主要通过不同的声像图特征进行判断，而且经阴道超声在确定前置胎盘类型方面准确率更高，值得临床广泛应用。

    【关键词】产前；超声；凶险型前置胎盘；胎盘植入；效果

    Clinical value of prenatal ultrasonography in the diagnosis of dangerous placenta previa complicated with placenta accreta

    SUN Xuanxuan

    Zibo City Zhangdian District Maternal and Child Health Hospital， Zibo， Shandong 255000， China

    【Abstract】Objective：To explore the clinical effect of prenatal ultrasonography in the diagnosis of dangerous placenta previa complicated with placenta implantation.Methods：71 patients with dangerous placenta previa complicated with suspected placenta implantation admitted to our hospital from November 2020 to May 2023 were selected as the study subjects.All patients received ultrasound diagnosis before delivery.The diagnostic efficacy of prenatal ultrasound in diagnosing dangerous placenta previa complicated with placenta implantation was observed using pathological diagnosis results after delivery as the gold standard；Then ......