摘要
目的评估三维超声容积对比成像技术定位脊髓圆锥末端水平的可重复性。方法采用三维超声容积对比成像显示164胎正常胎儿和12胎确诊为脊髓圆锥低位胎儿的脊髓圆锥末端水平,并评估观察者内及观察者间一致性。结果所有胎儿的脊髓圆锥末端水平均可被定位,正常胎儿观察者内和观察者间的Kappa值分别为0.943和0.915,异常胎儿观察者内和观察者间的Kappa值分别为0.965和0.913。结论三维超声容积对比成像技术用于评估脊髓圆锥末端水平,其观察者间与观察者内的一致性好,获得图像清晰直观,操作简便,可应用于快速且准确评价胎儿脊髓圆锥末端水平。
Objective To evaluate the repeatability for location of the level of fetal conus medullaris （CM） with three-dimensional volume contrast imaging （3D-VCI）. Methods Totally 164 normal fetuses and 12 fetuses with low-lying CM were enrolled. The location of fetal CM was performed sonographically using 3D-VCI, and the inter- and intra-observer agreement was assessed. Results The Kappa value of inter- and intra-observer agreement in evaluation on normal fetues CM was 0. 943 and 0. 915, and that for abnormal fetues CM was 0. 965 and 0. 913, respectively. Conclusion Inter- and in tra-observer agreement of 3D-VCI in location of level of fetal CM is high. The acquired images are clear and intuitive, which is manipulated simply and conveniently. This method can be used for rapid evaluation of the level of fetal CM.
出处
《中国介入影像与治疗学》
CSCD
北大核心
2017年第10期636-639,共4页
Chinese Journal of Interventional Imaging and Therapy
关键词
脊髓圆锥
胎儿
超声检查
容积对比成像
Conus medullaris
Fetus
Ultrasonography
Volume contrast imaging
