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白质疏松(Leukoaraiosis,LA)指脑室周围和(或)半卵圆中心的白质异常,可通过上述部位 CT 上低密度区或 T_2加权 MRI 上的高强度信号区确诊。据报道LA 与卒中特别是腔隙梗塞密切相关,但 LA 与卒中患者的预后关系尚未引起足够重视,为此,作者对LA 与腔隙梗塞患者预后关系进行了研究。作者从1984年～1990年日本某地发病1周内入院的520例急性脑梗塞患者中选出既往无卒中及
Leukoaraiosis (LA) refers to white matter abnormalities around the periventricular and / or semi-oval centers that can be diagnosed by low-density CT or T-weighted MRI on T2 MRI. It has been reported that LA is closely related to stroke, especially lacunar infarction. However, the relationship between LA and the prognosis of stroke patients has not been given sufficient attention. Therefore, the author studied the relationship between LA and the prognosis of patients with lacunar infarction. The author selected from 520 acute cerebral infarction patients admitted to Japan within 1 week from 1984 to 1990,