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缺血性脑血管病时Willis环的磁共振血管造影 被引量:5

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摘要 Willis环在缺血性脑血管病中起着重要的侧支循环作用 ,对Willis环形态和功能的研究是缺血性脑血管病研究的一个热点。磁共振血管造影 (MRA)不仅可直接显示Willis环的形态 ,而且还具有无创、无造影剂过敏等优点 ,是近几年常用的一种方法。时间飞跃和相位对比是两种最常用的显示Willis环的MRA技术 ,将两者结合起来不仅可显示其形态 。
出处 《国外医学(脑血管疾病分册)》 2001年第5期265-268,共4页 Foreign Medical Sciences Cerebrovascular Diseases
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