【摘要】 目的：定量研究正常小儿各年龄期侧脑室容量及年龄、性别因素对容量的影响。方法：用ＣＴ部分容积分析（ＰＶＡ）法分别定量测定正常新生儿期、婴儿期、幼儿期、学龄前期、学龄期、青春期侧脑室容量共８８９例，经统计学处理判定各年龄期及男女性别之间侧脑室容量有无显著性差异，确定各年龄期侧脑室容量均值及９５％之正常值范围。结果：统计学处理显示小儿各年龄期之间侧脑室容量Ｐ值小于０．０１，各年龄期男女性别之间Ｐ值大于０．０５，小儿不同年龄期均值及９５％之正常值范围分别为：新生儿期３．２７ｍｌ、２．３５～４．５７ｍｌ；婴儿期：３．６６ｍｌ、２．８７～４．６７ｍｌ；幼儿期：４．７３ｍｌ、３．８３～５．８５ｍｌ；学龄前期：５．７０ｍｌ、４．７２～６．８９ｍｌ；学龄期：６．７６ｍｌ、５．６６～８．０７ｍｌ；青春期：９．４５ｍｌ、６．２３～１３．８２ｍｌ。结论：正常小儿侧脑室容量不同年龄期之间存在着显著性差异，各年龄期男女性别之间无显著性差异，不同年龄期有不同的均值及９５％正常值范围相对应更多还原

【Abstract】 Objective:To study volumes of lateral ventricles quantitatively in healthy children,and the influences of sex and age on lateral ventricular volumes.Methods:Lateral ventricular volumes of 889 healthy children were measured with CT partial volume analysis (PVA). The data were processed by statistics with SAS (Statistical Analysis System,version 6.04) for the determination of mean values, and the range of 95 percent of estimated normal values. Analysis of variance were processed to judge whether there were significant differences or not between male and female, among the different growth stage:newborn, infant, juvenile, preschool, school and adolescent. Results: Analysis of variance revealed P<0.01 for lateral ventricular volumes of different growth stage, P>0.05 for those of sex.A series of mean volumes and 95 percent of estimated normal volumes for the different growth stage were respectively 3.27 ml and from 2.35 to 4.57 ml in newborn age; 3.66 ml and from 2.87 to 4.67 ml in infancy; 4.37 ml and from 3.83 to 5.85 ml in juvenile age; 5.70 ml and from 4.72 ml to 6.89 ml in preschool age; 6.76 ml and from 5.66 to 8.07 ml in school age; 9.45 ml and from 6.23 to 13.82 ml in adolescent age. Conclusions: ①There were significant differences in lateral ventricular volumes of the growth stage, there were different mean values and range of 95 percent estimated normal value corresponding to the different growth stage; ②No significant sexual difference of the lateral ventricular volumes was found in different growth stage.更多还原