经腹及经阴道超声在孕晚期前置胎盘检出中的准确性分析

Accuracy Analysis of Transabdominal and Transvaginal Detection of Placenta Previa in Late Pregnancy

目的探究经腹、经阴道超声及二者联合诊断孕晚期前置胎盘的准确性。方法纳入2022年1月至2023年12月于连城县医院妇产科就诊的90例孕晚期疑似前置胎盘的产妇,所有产妇入院后分别行经腹超声与经阴道超声诊断,以产后诊断结果为金标准,比较经腹、经阴道及二者联合诊断敏感性、特异性、准确性及对不同类型前置胎盘的诊断符合率。结果产后诊断结果显示90例患者中60例阳性,30例阴性,经腹诊断阳性49例,阴性24例,经阴道诊断阳性51例,阴性26例;联合诊断阳性59例,阴性28例;与单一诊断相比,联合诊断敏感度、准确度更高(P<0.05);对比单一诊断与联合诊断检出前置胎盘的符合率,后者高于前者(P<0.05)。结论经腹与经阴道超声诊断孕晚期前置胎盘各有优劣,二者联合能够提升诊断准确度及符合率。

Objective To explore the accuracy of transabdominal ultrasound,transvaginal ultrasound,and their combination in diagnosing placenta previa in late pregnancy.Methods The 90 suspected late pregnancy placenta previa patients included were selected from the patients visited the Obstetrics and Gynecology department of our hospital from January 2022 to December 2023.All selected patients were diagnosed by transabdominal ultrasound and perineal ultrasound respectively after admission.The postpartum diagnostic results were used as the gold standard to compare the sensitivity,specificity,accuracy,and diagnostic accuracy of transabdominal,transvaginal,and their combination diagnosis for different types of placenta previa.Results Among 90 patients,postpartum diagnosis showed 60 positive and 30 negative cases,transabdominal diagnosis showed 49 positive and 24 negative cases,transvaginal diagnosis showed 51 positive and 26 negative cases,and combined diagnosis showed 59 positive and 28 cases negative cases.Compared with individual diagnosis,combined diagnosis has higher sensitivity and accuracy,with P<0.05.The consistency rate of detecting placenta previa of individual diagnosis is lower than combined diagnosis,with P<0.05.Conclusion Both transabdominal and transvaginal ultrasound have advantages and disadvantages in diagnosing placenta previa in late pregnancy.The combination of them can improve diagnostic accuracy and consistency.