产前超声检查对胎盘植入的诊断效果及影响因素分析

Diagnostic effect of prenatal ultrasound in placenta implantation and analysis of its influenced factors

目的探讨产前超声检查对胎盘植入中诊断效果及其影响因素。方法选取2017年11月至2018年11月在该院就诊的疑似胎盘植入患者96例为研究对象,所选患者均接受磁共振及超声检查,比较两种检查方法的诊断效果、特异度、灵敏度,分析胎盘植入超声检查的影响因素。结果在96例疑似胎盘植入的患者中,病理学诊断结果为胎盘植入的有61例;超声检出49例,检出率80.3%(49/61),磁共振检出43例,检出率70.5%(43/61),超声检查对胎盘植入的检出率高于磁共振(P=0.015)。超声检查诊断胎盘植入的特异度、灵敏度高于磁共振(P<0.05)。前壁胎盘、妊娠期出血、前置胎盘均为影响超声检查诊断胎盘植入效果的影响因素(P<0.05)。结论采用超声检查诊断胎盘植入的特异度和灵敏度较高,前壁胎盘、妊娠期出血、前置胎盘均为超声检查诊断胎盘植入效果的影响因素。

Objective To investigate the diagnostic effect and prenatal ultrasonography in placenta implantation and to analyze its influenced factors.Methods Ninety-six patients with suspected placenta implantation from November 2017 to November 2018 were enrolled.The selected patients underwent magnetic resonance imaging and color Doppler ultrasonography to observe changes in images.The detective results,specificity,sensitivity of the two methods were compared,the influenced factors and independent risk factors of placental ultrasound examination analysis were analyzed.Results Among the 96 patients with suspected placenta implantation,there were 61 cases who were diagnosed with the placenta implantation by pathological test.A total of 49 cases were detected out by ultrasound,and the positive rate was 80.3%(49/61).A total of 43 cases were detected out by magnetic resonance and the positive rate was 70.5%(43/61).The positive rate of ultrasound diagnosis was significantly higher than that of magnetic resonance(P=0.015).The specificity and sensitivity of ultrasound were higher than that of magnetic resonance(P<0.05).The anterior wall placenta,postpartum hemorrhage and placenta previa were all influential factors of the efficacy of ultrasound in diagnosing placenta implantation(P<0.05).Conclusion In the process of diagnosing placenta implantation,ultrasound has higher specificity and sensitivity,anterior wall placenta,postpartum hemorrhage and placenta previa are the influenced factors of ultrasound in diagnosing placenta implantation.