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探讨脑白质疏松、脑梗塞与脑萎缩合并或独立发生的规律、原因和临床意义。材料与方法：对256树头颅CT显示三者合并或单独存在的住院病人进行回顾性分析，同时找出脑白质疏松和脑萎缩发现率与年龄增长的关系。结果：在脑白质疏松、脑梗塞与脑萎缩中，一病与二病合并率分别为89.6％、65．8％和61．6％，脑白质疏松与脑萎缩合并出现时，轻、中、重程度同步的占53．2％；二者的发现率与年龄增长至高度正相关，γ值分别为0．974和0．972（P＜0．01）。结论：三者的高合并率主要是由于年龄因素和相似的发病危险因素，对发病的差异性提出了一种假说：在相似的病困作用下，由于病变血管发生部位与程度不同，而导致不同的CT表现、因此，在认识和治疗上三者要给予同等的重视。
To investigate the law, cause and clinical significance of the combination of white matter loosening, cerebral infarction and cerebral atrophy. MATERIALS AND METHODS: A retrospective analysis was performed on 256 inpatient brain CT scans of in-patients with or without the presence of these three entities. At the same time, the relationship between the prevalence of leukoaraiosis and brain atrophy was found. Results: In leukoaraiosis, cerebral infarction and cerebral atrophy, the combined rate of one disease and two diseases were 89.6%, 65.8% and 61.6%, respectively. When combined with leukoaraiosis and cerebral atrophy, The degree of synchronicity accounted for 53.2%. The detection rates of both of them were highly positively correlated with the increase of age (γ = 0.974 and 0.972, P <0.01). Conclusion: The high consolidation rate of the three factors is mainly due to the age factor and similar risk factors of morbidity. A hypothesis is put forward on the difference of morbidity: under the similar morbidity and disability, due to the different parts and degrees of angiogenesis, Different CT performance, therefore, in recognition and treatment of the three should give equal attention.