| 郭玉娟,王睿丽,高园,张小林,刘冰冰,陈娟,袁建军,武海英,王莉.采用统一操作方法E-Cervix技术评估孕中晚期宫颈弹性[J].中国医学影像技术,2022,38(2):252~256 |
| 采用统一操作方法E-Cervix技术评估孕中晚期宫颈弹性 |
| Unified operating method of E-Cervix technology for evaluation on cervical elasticity in the second and third trimester of pregnancy |
| 投稿时间：2021-05-18 修订日期：2021-08-24 |
| DOI：10.13929/j.issn.1003-3289.2022.02.021 |
| 中文关键词: 子宫颈 超声检查 弹性成像技术 |
| 英文关键词:cervix uteri ultrasonography elasticity imaging techniques |
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| 中文摘要: |
| 目的 评价以统一操作方法E-Cervix技术测量孕中晚期孕妇宫颈弹性参数的一致性。方法 将160名孕中晚期孕妇分为宫颈内口闭合组（n=80）及开放组（n=80），于其中各随机选取40名作为统一操作亚组，其余40名为非统一操作亚组。由2名超声医师对各亚组孕妇行E-Cervix检查，测量宫颈弹性参数，包括弹性对比指数（ECI）、硬度比值（HR）、宫颈内口应变（IOS）、宫颈外口应变（EOS）、宫颈内外口应变比（IOS/EOS）及宫颈长度（CL）。采用组内相关系数（ICC）评价观察者内测量结果的一致性；如操作后每名医师测得各亚组内全部参数的ICC均≥0.6，则以Bland-Altman法评价观察者间测量参数的一致性。结果 非统一操作时，每名医师测得每组部分参数ICC<0.6（P均<0.05）；采用统一方法操作，每名医师测得参数的ICC均>0.8（P均<0.05）。统一操作后，Bland-Altman分析显示观察者间测量参数的一致性良好，各参数差值中95%~100%位于95%一致性界限内，差值的均值、回归方程的截距与斜率均无统计学意义（P均>0.05）。结论 以统一方法行孕中晚期E-Cervix检查，所测宫颈弹性参数结果的一致性较高。 |
| 英文摘要: |
| Objective To observe the consistency of unified operating method E-Cervix technology for evaluation on cervical elasticity of pregnancy women in the second and third trimester. Methods A total of 160 pregnant women in the second and third trimester of pregnancy were enrolled and divided into closed internal cervix orifice group (n=80) or open group (n=80). Pregnant women in each group were randomly further divided into unified operating subgroup or non-uniform operating subgroup (each n=40). E-Cervix examination was performed by 2 sonographers to measure cervical elasticity parameters, including elastic contrast index (ECI), hardness ratio (HR), internal os strain (IOS), external or strain (EOS), internal and external strain ratio (IOS/EOS) and cervical length (CL). The intra-class correlation coefficient (ICC) was used to evaluate the intra-observer consistency of the measurement results. Under the condition of ICC of all parameters measured by each sonographer ≥ 0.6, the Bland-Altman method was used to analyze the inter-observer consistency of the measurement results of the above parameters. Results Using non-uniform operating method, the ICC of some parameters measured by each sonographer were <0.6 (all P<0.05), whereas using unified operating method, the ICC of all parameters measured by each sonographer were >0.8 (all P<0.05). Bland-Altman method analysis exhibited good inter-observer consistency of the measured parameters using unified operating method. There were 95%-100% points of the differences of parameters within 95% limits of agreement. The mean of the differences and the intercept and slope of the regression equation were not statistically different (all P>0.05). Conclusion Using unified operating method of E-Cervix might obtain good consistency of measurement results of cervical elasticity parameters of pregnancy women in the second and third trimester. |
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