摘要
目的 分析老年性脑白质疏松的磁共振 (MRI)表现并与临床对照分析。方法 搜集资料完整并经MRI诊断为脑白质疏松者 76例 ,男 4 9例 ,女 2 7例 ;年龄 6 0～ 94岁 ,平均 6 9 2岁。根据MRI所见和病灶部位 ,比较临床症状与脑白质疏松的关系。结果 病灶主要位于大脑皮质下脑白质区域侧脑室周围 ,常伴有多灶性脑梗死、脑萎缩等脑血管病变 ,脑白质疏松还与高血压密切相关。脑白质疏松可见于正常老年人。结论 MRI是发现老年性脑白质疏松的重要手段 ,对预防老年性痴呆有重要意义。T2 WI水抑制序列(TIRM )显示白质疏松特别敏感。
Objective To analyze the MRI findings of leukoaraiosis in the aged,and compare the findings with the clinical data.Methods MRI findings of 76 patients with leukoaraiosis(49 male and 27 female,mean 69.2 years),being diagnosed with a 1.0T MRI nuit,were analyzed.A comparison was made between clinical symptoms and leukoaraiosis according to MRI features and location of lesions.Results The lesions of leukoaraiosis were mainly located at subcortical white matter,and around the lateral ventricale,often accompanied by cerebrovascular diseases,such as multiple infarction,encephalatrophy,etc.Leukoaraiosis showed a close relation to hypertension.Leukoaraiosis was also found in healthy elderly.Conclusion MRI is very useful in detecting leukoaraiosis and preventing senile dementia.TIRM can detect leukoaraiosis with high sensitivity.
