【摘要】 目的用高分辨率CT(HRCT)测量婴幼儿蜗神经管(CNC)宽径,估算95%可信区间正常值范围。方法用HRCT对129例(258耳)婴幼儿CNC宽径进行测量,采用统计学软件SPSS 17.0对测量数据进行分析。结果婴幼儿CNC宽径均值为(1.75±0.17)mm,在年龄、性别和左右侧之间无显著性差异(P>0.05),95%可信区间正常值范围为1.42~2.08 mm。结论婴幼儿CNC的HRCT测量及估算的正常值范围,可为人工耳蜗植入术术前评价CNC发育情况提供影像学参考依据。更多还原

【Abstract】 Objective To measure the width/diameter of cochlear nerve canal(CNC)with HRCT and estimate the the range of normal values of 95%confidence interval of CNC.Methods 258 ears in 129 cases CNC were measured with HRCT and the data was analyzed by statistical software SPSS17.0.Resultsthe width of CNC was(1.75±0.17)mm,there was no significant differences in different age groups,male and female groups,left and right groups.The normal range of width of CNC was 1.42-2.08 mm.ConclusionThe HRCT measurements of CNC in infants and its normal range estimated could provide imaging reference for evaluating the development of CNC before cochlear implant.更多还原