超声联合磁共振检查对植入型凶险性前置胎盘的术前评估价值分析

Analysis of preoperative evaluation value of ultrasound combined with magnetic resonance examination for dangerous placenta previa

目的:分析超声联合磁共振检查对植入型凶险性前置胎盘的术前评估价值。方法:遴选本院收治的48例疑似植入型凶险性前置胎盘为探究对象,研究时间为2020年7月至2021年7月,全部研究对象均实施超声、超声联合核磁共振检查,以病理结果为金标准,对比不同检查方式的结果。结果:分娩后组织病理学检查结果显示,48例患者均为植入型凶险性前置胎盘,超声诊断准确性为87.50%,漏诊率为8.33%,误诊率为4.16%;联合检查准确性为97.92%,漏诊率为2.08%,误诊率为0.00%。联合检查准确性明显高于超声检查,P<0.05;联合检查漏诊率、误诊率低于超声检查,但差异无统计学意义,P>0.05;超声检查灵敏度为87.50%,联合检查灵敏度为97.92%。联合检查诊断灵敏度明显高于超声检查,P<0.05;联合检查对于局灶性胎盘植入、完全性胎盘植入、部分性胎盘植入的检出率均高于超声检查,但差异无统计学意义,P>0.05。结论:在植入型凶险性前置胎盘的产前诊断中,超声联合磁共振检查具有重要的诊断价值,可明确诊断胎盘植入情况,可为术前准备提供可靠的影像学资料,可改善预后。

Objective:To analyze the preoperative evaluation value of ultrasound combined with magnetic resonance examination for dangerous placenta accreta.Methods:48 cases of suspected implantable and dangerous placenta previa treated in our hospital were selected as the research objects.The research time was from July 2020 to July 2021.All the research objects were examined by ultrasound and ultrasound combined with nuclear magnetic resonance imaging.Taking the pathological results as the gold standard,the results of different examination methods were compared.Results:The histopathological examination results after delivery showed that 48 patients were all with dangerous placenta accreta,the diagnostic accuracy of ultrasound was 87.50%,the missed diagnosis rate was 8.33%,and the misdiagnosis rate was 4.16%;the accuracy of combined examination was 97.92%,the missed diagnosis rate was 2.08%,and the misdiagnosis rate was 0.00%.The accuracy of combined examination was significantly higher than that of ultrasound examination,P<0.05;the rate of missed diagnosis and misdiagnosis of combined examination was lower than that of ultrasound examination,the difference was insignificant,P>0.05;the sensitivity of ultrasound examination was 87.50%,and the sensitivity of combined examination was 97.92%.The diagnostic sensitivity of combined examination is significantly higher than that of ultrasound examination,P<0.05;the detection rate of combined examination for focal placenta accreta,complete placenta accreta,and partial placenta accreta is higher than that of ultrasound examination,the difference was not significant,P>0.05.Conclusion:In the prenatal diagnosis of dangerous placenta accreta previa,ultrasound combined with magnetic resonance examination has important diagnostic value,which can clearly diagnose placenta accreta,provide reliable imaging data for preoperative preparation,and improve the prognosis.