２５２例脑梗塞病人中１９例ＣＴ扫描显示脑室周围白质疏松（Ｌｅｕｋｏ－Ａｒａｉｏｓｉｓ，ＬＡ）变化，将其与１９例无ＬＡ的脑梗塞病人做对照研究。结果发现ＬＡ在脑梗塞病人中占７．５４％（１９／２５２），高血压病是脑梗塞病人发生ＬＡ最主要的危险因素。ＬＡ的ＣＴ特征为脑室周围及半卵圆中心呈现对称或非对称性低密度影，边缘模糊，如月晕或扫帚状，尤以侧脑室前角周围的白质最易受累。 Ninety-two CT images of 252 patients with cerebral infarction showed changes of periventricular leukoaraogenesis (LA), which were compared with 19 non-LA cerebral infarction patients. The results found that LA accounted for 7.54% (19/252) of patients with cerebral infarction, hypertension is the most important risk factor for LA in patients with cerebral infarction. The CT features of LA are symmetrical or asymmetric low density densities around the periventricular and semi-oval centers with blurred edges such as lunar or broom-like shapes, especially white matter around the anterior horn of the lateral ventricle.