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目的：定量研究正常老年人侧脑室容量及年龄、性别对其影响。方法：用ＣＴ部分容积分析（ＰＶＡ）法定量研究６３４例６１～９０岁间老年人侧脑室的容量，经统计学处理确定侧脑室容量６１～７０岁、７１～８０岁、８１～９０岁之间及男女性别之间有无显著性差异，并确定其均值及９５％之正常值范围。结果：统计学处理表明侧脑室容量６１～７０岁、７１～８０岁、８１～９０岁之间Ｐ值小于０．０１，男女性别之间Ｐ值大于０．０５，其均值及９５％之正常值范围分别为：６１～７０岁之间，为１６．７７ｍｌ及１２．８４～２１．８９ｍｌ；７１～８０岁之间；为１８．４３ｍｌ及１５．１１～２２．４７ｍｌ；８１～９０岁之间，为２１．４２ｍｌ及１５．９６～２８．７６ｍｌ。结论：正常老年人侧脑室容量６１～７０岁、７１～８０岁、８１～９０岁年龄组之间存在着显著性差异，男女性别之间不存在显著性差异，三个年龄组侧脑室容量均值及９５％正常值范围不同。
OBJECTIVE: To quantitatively study the influence of lateral ventricle volume, age and gender in normal elderly. Methods: The volume of lateral ventricle of 634 elderly people aged 61-90 years was quantitatively studied by CT partial volume analysis (PVA) method. The volume of lateral ventricle was determined to be 61-70 years old, 71-80 years old, 81-90 years old There is no significant difference between male and female sex, and determine the average and 95% of the normal range. Results: Statistical analysis showed that the lateral ventricle volume was between 61 and 70 years old. The P value between 71 and 80 years old and between 81 and 90 years old was less than 0.01. The P value between male and female was more than 0.05. The mean and 95% normal Values range from 61 to 70 years old, 16.77 ml and 12.84 to 21.89 ml respectively; between 71 and 80 years old, 18.43 ml and 15.11 to 22.47 ml; and 81 to 90 years old Between 21.42ml and 15.96 ~ 28.76ml. Conclusion: There are significant differences between the age group of 61-70 years old, 71-80 years old and 81-90 years old in the normal elderly. There is no significant difference between male and female gender, the average of the lateral ventricular volume in the three age groups And 95% normal range of different.