Nakagawa T, Yamane H, Nakai Y, Shigeta T, Takashima T
Department of Otorhinolaryngology, Yodogawa Christian Hospital, Osaka, Japan.
Acta Otolaryngol Suppl. 1998;538:54-7. doi: 10.1080/00016489850182747.
To evaluate the advantages of magnetic resonance angiography (MRA) in assessing the vertebrobasilar artery system for diagnosing vertebrobasilar insufficiency (VBI), we compared the MRA results of middle-aged and older VBI cases with those of age-matched peripheral disorder cases. There were no significant differences in the rate of complications associated with atherosclerosis between VBI cases and peripheral disorder cases. The MRA results were quantitatively assessed by scores determined on the basis of the severity of stenosis in the vertebral arteries and basilar artery. The MRA score was defined as the total score of these three arteries. The severity of stenosis and the MRA score of VBI cases were significantly higher than those of peripheral cases. MRA can therefore be of value as a screening examination for estimating vertebrobasilar blood flow and can provide helpful information for diagnosing VBI.
为评估磁共振血管造影（MRA）在评估椎基底动脉系统以诊断椎基底动脉供血不足（VBI）方面的优势，我们将中老年VBI病例的MRA结果与年龄匹配的周围性疾病病例的结果进行了比较。VBI病例与周围性疾病病例在与动脉粥样硬化相关的并发症发生率方面无显著差异。MRA结果通过基于椎动脉和基底动脉狭窄严重程度确定的评分进行定量评估。MRA评分定义为这三条动脉的总分。VBI病例的狭窄严重程度和MRA评分显著高于周围性疾病病例。因此，MRA作为一种估计椎基底动脉血流的筛查检查可能具有价值，并可为诊断VBI提供有用信息。
