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本文从１８７例临床诊断为椎基底动脉供血不足或椎基底动脉系统ＴＩＡ的病例中选择３３例老年病人，对其ＭＲＩ和ＭＲＡ资料进行了分析。头部ＭＲＩ显示６例异常，占１８．２％，除１例小脑出血外，另５例均为梗塞。ＭＲＡ显示１４例异常，占４２．４％，其中１１例显示与临床症状相应的椎基底动脉系统的闭塞或狭窄，３例显示颈内动脉系统的狭窄。可见，椎基底动脉系统的闭塞或狭窄是老年纯眩晕发作的重要原因之一，部分患者还可能存在小脑、脑干等区的梗塞灶或出血灶等。
This article from the clinical diagnosis of 187 cases of vertebrobasilar insufficiency or vertebrobasilar system TIA cases selected 33 cases of elderly patients, their MRI and MRA data were analyzed. Head MRI showed abnormalities in 6 cases, accounting for 18.2%. In addition to 1 case of cerebellar hemorrhage, the other 5 cases were infarction. MRA showed 14 cases of abnormalities, accounting for 42.4%, of which 11 cases showed occlusion or stenosis of vertebrobasilar system corresponding to clinical symptoms and 3 cases showed stenosis of internal carotid artery system. Can be seen, vertebrobasilar occlusion or stenosis is pure old age vertigo attack one of the important reasons, some patients may also exist in the cerebellum, brain stem infarction or other areas of the lesion and so on.