超声E-cervix技术评估宫颈机能对早产预测效能的ROC曲线分析

目的 探讨超声E-cervix技术评估宫颈机能对早产预测效能分析。方法 选取2020年1月～2021年1月200例在我院建档规律接受产检孕妇及100例孕前常规检查者，采用超声E-cervix技术评估宫颈机能，根据早产情况分为早产组和足月产组，比较两组一般资料、宫颈长度（CL）、弹性对比指数（ECI）、宫颈外口应变率（EOS）、宫颈内口应变率（IOS）、宫颈内外口应变比值（IOS/EOS）、硬度比值（HR），采用多因素Logistic回归方程分析早产的相关影响因素，采用受试者工作特征曲线（ROC）分析超声E-cervix技术参数预测早产的价值。结果 早产组宫颈手术史高于足月产组（P＜0.05）；妊娠期者CL、IOS、IOS/EOS高于增生期、分泌期者，HR低于增生期、分泌期者（P＜0.05）；早产组CL、HR低于足月产组，ECI、IOS、IOS/EOS高于足月产组（P＜0.05）；宫颈手术史、ECI、IOS、IOS/EOS是早产的相关危险因素，CL、HR是早产的相关保护因素（P＜0.05）；CL、ECI、IOS、IOS/EOS、HR预测早产的ROC曲线下面积依次为0.802、0.745、0.795、0.795、0.803，各参数联合的ROC曲线下面积为0.803。结论 ECI、IOS、IOS/EOS是早产的相关危险因素，CL、HR是早产的相关保护因素，超声E-cervix技术可检测以上参数评估宫颈机能，从而对早产做出准确预测。

ROC curve analysis of the efficacy of ultrasound E-cervix technique in evaluating cervical function in predicting preterm birth

Objective To investigate the efficacy of ultrasound E-cervix technique in evaluating cervical function in predicting preterm birth. Methods 200 pregnant women and 100 patients who received regular pre-pregnancy examinations in our hospital from January 2020 to January 2021 were selected. Ultrasound E-cervix technology was used to evaluate cervical function. In the delivery group, the general data, cervical length (CL), elastic contrast index (ECI), cervical external os strain rate (EOS), cervical internal os strain rate (IOS), and cervical internal and external os strain ratio (IOS/EOS) were compared between the two groups. , hardness ratio (HR), the multivariate Logistic regression equation was used to analyze the related influencing factors of preterm birth, and the receiver operating characteristic curve (ROC) was used to analyze the value of ultrasonic E-cervix technical parameters in predicting preterm birth. Results The history of cervical surgery in the preterm group was higher than that in the full-term group (P<0.05); CL, IOS, IOS/EOS in pregnancy were higher than those in proliferative and secretory periods, and HR was lower than those in proliferative and secretory periods (P<0.05). ); CL and HR in the preterm group were lower than those in the term group, and ECI, IOS, IOS/EOS were higher than those in the term group (P<0.05); history of cervical surgery, ECI, IOS, and IOS/EOS were associated risk factors for preterm birth , CL and HR were related protective factors for preterm birth (P<0.05); the area under the ROC curve of CL, ECI, IOS, IOS/EOS and HR for predicting preterm birth were 0.802, 0.745, 0.795, 0.795, 0.803, respectively. The area under the ROC curve was 0.803. Conclusion ECI, IOS, IOS/EOS are related risk factors for preterm birth, CL and HR are related protective factors for preterm birth. Ultrasound E-cervix technology can detect the above parameters to evaluate cervical function, so as to accurately predict preterm birth.