中文摘要：

目的利用立体定向MRI资料和计算机技术进行脑室三维重建并对体积进行统计分析。方法对健康自愿者按立体定向基线行轴位全脑MRI，选取60例资料分别对脑室系统进行识别、分割、提取、重建并进行体积测量。结果70岁年龄组脑室体积为（30．85±2．23）mm^3，60岁年龄组体积为（31．56±2．14）mm^3，60岁以下组体积为（26．48±1．96）mm^3。结论60岁以上组脑室体积较60岁以下组明显增大．60岁组和70岁组脑室体积无显著性差异。

英文摘要：

Objective With the help of the MR images and the computer technology to study the volume of brain ventricles in the elderly. Methods Ventricle on stereotactie MR images were analyzed from 60 healthy volunteers, ventricles were identified, segmented, extracted, rebuilded and detected. Resdts Volume of ventricles in the age （71 - 80） was （30. 85 ± 2. 23 ）mm^3, that in the age （61 - 70 ） was （ 31.56 ±2. 14） mm^3, that in under the age of 60 was （26.48 ± 1.96） mm^3. Conclusions The volume of ventricles in over the age of 60 increases apparently, but there is no significant difference between the groups aged 61 - 70 and aged 71 - 80.