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对血管性痴呆（ＶａＤ）５７例，脑血管病（ＣＶＤ）３５例，对照组３２例进行血液流变学指标及动脉血流速度进行测定。结果表明：ＶａＤ和ＣＶＤ患者广泛存在血粘度的异常，痴呆与脑血管病及痴呆程度之间这种异常均无差异，这可能与２种疾病的基础病理是一致的有关。ＶａＤ患者的脑血流异常的发生主要以减慢为主，平均血流速度显著低于对照组，而脑梗死的异常减慢和增高的发生率大致相似，大部分动脉的平均血流速度与对照组相比均无显著差异。这可能是ＶａＤ患者的脑动脉粥样硬化程度较非痴呆的ＣＶＤ患者更重之故。
57 cases of vascular dementia (VaD), 35 cases of cerebrovascular disease (CVD) and 32 cases of control group were measured for hemorheology and arterial blood flow velocity. The results showed that there was widespread abnormalities of blood viscosity in patients with VaD and CVD, and there was no difference between the dementia and cerebrovascular diseases and the degree of dementia. This may be related to the basic pathology of the two diseases. VaD patients with cerebral blood flow abnormalities mainly slow down, the average blood flow was significantly lower than the control group, while the abnormalities of cerebral infarction slowed down and increased the incidence of approximately the same, most of the average arterial blood flow velocity and No significant difference between the control group. This may be because VaD patients have a higher degree of cerebral atherosclerosis than non-demented CVD patients.