脑梗塞磁共振血管造影术与临床

使用磁共振血管造影术(MagneticResonanceAngiography,MRA)观察80例脑梗塞急性期血管形态。63例(78.8%)中显示异常,分为4种类型:①完全闭塞;②不完全闭塞;③血管稀少、血流减慢;④广泛血管分支纤细、僵硬。以①型及②型居多,分别占42.0%和30.2%。闭塞的程度与病灶大小有关。治疗后21~28d内18例MRA复查,发现9例①型中有5例大片脑梗塞完全闭塞的血管部分再通,MRI见有出血灶;4例形态未变,但出现侧枝循环,MRI显示病灶缩小。对非大片脑梗塞患者应用血管扩张剂对促进侧枝循环建立,改善病灶供血可能有帮助。 更...

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Bibliographic Details
Format: Article
Language:zho
Published: Editorial Office of Journal of Sun Yat-sen University 1996-01-01
Series:Zhongshan Daxue xuebao. Yixue kexue ban
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Online Access:http://xuebaoyx.sysu.edu.cn/zh/article/43590586/
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