目的 血管性痴呆和阿尔茨海默 病患者脑MRI对比分析。方法 本文选取 我院于2014年01月-2015年05月收治的各 35例血管性痴呆和阿尔茨海默病患者， 对所有患者全部实施脑部MRI扫描诊断， 进一步对其扫描诊断的MRI图像加以分析 探讨，对比两组患者的海马体积测量值 大小、LA分级情况以及影像学结果。结 果 血管性痴呆组患者的海马体积平均为 (4.80±0.27)立方厘米，阿尔茨海默病组 患者的海马体积平均为(4.44±0.24)立 方厘米，两组结果对比存在显著性差异 (P<0.05)，具有统计学意义。两组LA分级 情况结果对比存在显著性差异(P<0.05)， 具有统计学意义。结论 血管性痴呆和阿 尔茨海默病患者的脑部MRI图像存在较大 的差异，需要结合临床治疗和诊断过程加 以有效鉴别和诊断。

Objective Vascular dementia and alzheimer's disease brain MRI contrast analysis. Methods This article selects the hospital in January, 2015 to May 2014 treated 35 cases of vascular dementia and alzheimer's patients, for all the patients with brain magnetic resonance imaging (MRI) scan in the diagnosis of, further the scan in the diagnosis of MRI image to analyze, compare two groups of patients with hippocampal volume measurement size and grade of LA situation and imaging results. Results The vascular dementia group of patients with hippocampal volume average (4.80+0.27) cubic centimeter, alzheimer's disease patients hippocampal volume averaged cubic centimeter (4.44+0.24), the results of two groups exist significant difference(P<0.05), with statistical significance. There are the results of two groups of LA is more significant difference (P<0.05), with statistical significance. Conclusion Vascular dementia and alzheimer's patients, there are many differences between MRI images of the brain needs to be combined with clinical treatment and diagnosis process to effectively identify and diagnose them.