摘要
颈内动脉和大脑中动脉重度狭窄、闭塞通常导致脑内血流动力学障碍 ,是引起脑梗死的最常见原因。磁共振脑灌注加权成像 (perfusionweightedimaging ,PWI)使用团注顺磁性对比剂方法 ,能够在脑梗死发生前显示脑血流动力学异常改变。本文对PWI在颈内动脉和大脑中动脉狭窄。
Severe ICA/MCA stenosis or occlusion is one of the important causes of stroke and may be associated with various degrees of hemodynamic impairment. MR perfusion weighted imaging (PWI) is based on analysis of an intravenously injected bolus of susceptibility contrast material. It can be demonstrated hemodynamic impairment before infarction in patients with ICA/MCA stenosis or occlusion. This article will review the progress of PWI in ICA/MCA stenosis or occlusion. [
出处
《中国医学影像技术》
CSCD
2004年第11期1797-1799,共3页
Chinese Journal of Medical Imaging Technology
关键词
颈内动脉
大脑中动脉
狭窄
闭塞
磁共振成像
灌注
Internal carotid artery
Middle cerebral artery
Stenosis, occlusion
Magnetic resonance imaging
Perfusion
