产前磁共振成像联合超声在胎盘植入患者诊断及分级中的应用

目的探究产前磁共振成像(MRI)联合超声对胎盘植入(PIA)确诊与分级诊断的临床应用价值。方法回顾性分析产前行MRI与超声检查的372例孕妇临床资料,以产后胎盘病理检测结果为“金标准”,分析单纯MRI、单纯超声及二者联合检查确诊PIA与分级诊断的准确性差异。结果372例孕妇产后确诊86例PIA,其中粘连性42例,植入性33例,穿透性11例。单纯超声确诊PIA的特异度与准确度均明显低于单纯MRI、MRI联合超声检查方案(P<0.05),而MRI联合与不联合超声确诊PIA特异度、准确度比较则均无统计学意义(P>0.05)。分级诊断准确率比较显示,单纯超声<单纯MRI

Application of Prenatal Magnetic Resonance Imaging Combined with Ultrasound in the Diagnosis and Grading of Patients with Placental Implantation Abnormality

Objective To investigate the clinical application value of prenatal magnetic resonance imaging(MRI)combined with ultrasound in the definite diagnosis and grading diagnosis of placental implantation abnormality(PIA).Methods The clinical data of 372 pregnant women who were given MRI and ultrasound before delivery were retrospectively analyzed.The results of postpartum placental pathological examination were taken as gold standard to analyze the differences of accuracy of PRI definite diagnosis and grading diagnosis by simple MRI,simple ultrasound and combined examination.Results Among 372 pregnant women,86 cases were diagnosed as PIA after delivery,including 42 cases of adhesion,33 cases of implantation and 11 cases of penetrability.The specificity and accuracy of simple ultrasound in the definite diagnosis of PIA were significantly lower than those of simple MRI or MRI combined with ultrasound(P<0.05),and there was no statistically significant difference in specificity and accuracy of PRI definite diagnosis between MRI combined with ultrasound and MRI(P>0.05).The comparison of grading diagnosis accuracy showed that simple ultrasound