【摘要】 目的 探究双模态弹性成像对孕早期宫颈机能不全（CIC）的诊断价值。方法 选取确诊为CIC的54例孕早期孕妇（CIC组），另选取同期来院检查正常的54例正常孕早期孕妇（正常组）。通过医院电子病历系统，统计两组孕妇的一般资料、来院时通过双模态弹性成像检查所得的主要参数结果，剪切波弹性成像包括弹性模量、剪切波速度；应变式弹性成像包括应变比值，绘制受试者工作特征（ROC）曲线、列线图及决策曲线，重点分析双模态弹性成像对孕早期CIC的诊断价值。结果 CIC组弹性模量、剪切波速度均较正常组低，应变比值较正常组高，差异有统计学意义（P<0.05）。绘制ROC曲线显示弹性模量、剪切波速度、应变比值诊断孕早期CIC的AUC均>0.80，均有一定诊断价值。绘制决策曲线及列线图模型显示弹性模量、剪切波速度、应变比值联合构建的诊断模型对孕早期孕妇CIC有理想的诊断效能。结论 双模态弹性成像能反映孕妇宫颈组织弹性情况，可用于孕早期孕妇CIC的诊断。更多还原

【Abstract】 Objective To explore the diagnostic value of dual-mode elastography technology for cervical incompetence(CIC) in early pregnancy. Methods Data from 54 early pregnant women diagnosed with CIC were collected and included in the CIC group. Data from 54 normal early pregnant women who came to the hospital for examination during the same period were also collected and included in the normal group. Through the hospital’s electronic medical record system, general information of two groups of parturients was collected, and the main parameter results in terms of shear wave elastography( elastic modulus, shear wave velocity) and strain elastography(strain ratio) obtained through bimodal elastography upon arrival were analyzed. Receiver operating characteristic curves(ROC), column charts, and decision curves were plotted, with a focus on analyzing the diagnostic value of bimodal elastography technology for early pregnancy CIC. Results The elastic modulus and shear wave velocity of the CIC group were lower than those of the normal group, and the strain ratio was higher than that of the normal group(P<0.05). The ROC curve showed that the AUC of elastic modulus, shear wave velocity, and strain ratio for diagnosing early pregnancy CIC were all greater than 0.80, indicating certain diagnostic value. The decision curve and column chart models showed that the diagnostic model constructed by combining elastic modulus, shear wave velocity, and strain ratio had ideal diagnostic efficacy for CIC in early pregnancy women. Conclusion Dual modal elastography technology can provide feedback on the elasticity of cervical tissue in pregnant women, which can be used for the diagnosis of CIC in early pregnancy.更多还原