| 黄延延,苏珊珊,吕国荣.产前超声评估胎儿咽、喉及气管发育[J].中国医学影像技术,2013,29(9):1530~1533 |
| 产前超声评估胎儿咽、喉及气管发育 |
| Prenatal ultrasonic evaluation on the development of fetal trachea, larynx and pharynx |
| 投稿时间：2013-03-18 修订日期：2013-07-19 |
| DOI： |
| 中文关键词: 超声检查,产前 胎儿 咽 喉 气管 |
| 英文关键词:Ultrasonography, prenatal Fetus Pharynx Larynx Trachea |
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| 中文摘要: |
| 目的 探讨胎儿咽、喉及气管直径与孕周的关系,建立正常参考值范围。方法 对280胎18~38周正常单胎胎儿进行常规产前超声检查,测量咽、喉及气管直径;采用回归分析评价各测量值与孕周的关系,以组内相关系数(ICC)及Bland-Altman检验评价测量结果的重复性和一致性。结果 正常胎儿咽、喉及气管的直径均随孕周而增大,其回归方程如下:咽直径(mm)=0.230孕周-0.460(r2=0.487,P<0.01);喉直径(mm)=0.324孕周-0.851(r2=0.699,P<0.01);气管直径(mm)=0.118孕周-0.342(2=0.576,P<0.01)。测量咽、喉及气管直径的重复性和一致性均较高。结论 产前超声可用以建立胎儿咽喉及气管直径的正常参考值范围,且有助于评价胎儿发育及早期诊断胎儿气道狭窄。 |
| 英文摘要: |
| Objective To explore the relationship between gestational age (GA) and the diameter of fetus trachea, larynx and pharynx, in order to establish normal references of the above structures. Methods A total of 280 normal fetuses with 18 to 38 weeks underwent prenatal ultrasound. The diameters of fetus trachea, larynx and pharynx were measured, and their correlation with GA were evaluated with regression analysis. The repeatability and consistency were analyzed with ICC and Bland-Altman analysis. Results The diameters of fetus trachea, larynx and pharynx strongly correlated with GA. The correlation coefficient with the regression equation were as the follows: For pharynx, diameter (mm)=0.230GA-0.460 (r2=0.487, P<0.01); for larynx, diameter (mm)=0.324GA-0.851 (r2=0.699,P<0.01); for trachea, diameter (mm)=0.118GA-0.342 (r2=0.576, P<0.01). The repeatability and consistency of the data obtained were all perfect. Conclusion Prenatal ultrasound could be used to establish normal reference range of the diameter of fetus trachea, larynx and pharynx in different gestation, therefore providing valuable references for evaluation of fetal development and early diagnose of respiratory tract dysplasia. |
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