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根据Ｈａｈｎ法，采用ＣＴ扫描测量了４２２例正常成人侧脑室的大小。按年龄范围和性别进行了分组，经统计学处理后表明，各年龄组和性别之间差异均无显著性；确定其侧脑室的正常值范围为０．２４９～０．３６３。为临床提供了一项客观量化标准。
According to the Hahn method, the size of the lateral ventricle of 422 normal adults was measured by CT scanning. By age range and gender were grouped, after statistical analysis showed that there was no significant difference between the age groups and gender; to determine the normal range of the lateral ventricle 0.249 ~ 0.363. It provides an objective quantitative standard for clinical practice.