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前置胎盘是由于胎盘附着于子宫下段或覆盖子宫颈内口处,位置低于胎儿先露部,是引起妊娠晚期出血的主要原因之一[1]。前置胎盘是引起妊娠期晚期出血的主要原因,超声检查是目前胎盘定位的首选,扫查途径可经腹部、经会阴或经阴道[2]。阴道超声是普遍公认的检查前置胎盘的金标准,但阴道超声检查时间长且专业要求高,很多医师因此使用腹部超声筛选排除前置胎盘。本研究对经阴道超声诊断的41例前置胎盘孕妇的经腹超声结果进行分析比较,旨在进一步确定腹部超
Placenta previa is due to the placenta attached to the lower uterine segment or cover the mouth of the cervix, the location lower than the fetal anterior debridement is caused by one of the main reasons for bleeding in late pregnancy [1]. Placenta previa is caused by late pregnancy bleeding the main reason, ultrasound is the preferred choice of placental positioning, scanning approach may be the abdomen, the perineal or transvaginal [2]. Vaginal ultrasound is a commonly accepted gold standard for examining placenta previa, but vaginal sonography is long and professionally demanding, and many physicians therefore use abdominal ultrasound screening to rule out placenta previa. In this study, transabdominal ultrasound results of 41 cases of placenta previa diagnosed by transvaginal sonography were compared and analyzed to further determine the abdominal ultrasonography