Postcarotid Endarterectomy Hyperperfusion or Reperfusion Syndrome
Postcarotid Endarterectomy Hyperperfusion or Reperfusion Syndrome
复制标题
颈动脉内膜切除术后过度灌注或再灌注综合征
DOI：
10.1177/153100350501700415
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
M. Belkin
中科院分区：
文献类型：
--
作者：
C. D. Owens;M. Belkin
作者用弥散加权和灌注加权磁共振成像研究了高融合综合征的病理生理学。他们通过扩散加权成像识别血管源性或细胞毒性水肿，通过经颅多普勒评估脑动脉平均血流速度，并通过灌注加权成像评估脑血流的相对半球间差异。无1例出现病理性弥散加权成像高信号，2例表现为可逆性血管源性水肿的MRI表现。大脑中动脉平均血流速度未见异常升高。他们的结论是，当同侧大脑半球存在中度相对过度融合时，可能会发生过度融合综合征，平均血流速度可能不能准确反映大脑半球之间的相对差异。
The authors studied the pathophysiology of hyperfusion syndrome with diffusion-weighted and perfusion-weighted magnetic resonance imaging. They identified vasogenic or cytotoxic edema by diffusion-weighted imaging, assessed cerebral artery mean flow velocities by transcranial Doppler, and assessed the relative nterhemispher c difference of cerebral blood flow by perfusion-weighted imaging. No patient presented with pathologic diffusion-weighted imaging hyperintensitities, 2 patients exhibited an MRI pattern of reversible vasogenic edema. Mean flow velocities in the middle cerebral artery were not abnormally increased. They concluded that hyperfusion syndrome can occur in the presence of moderate relative hyperfusion of the ipsilateral hemisphere and that mean fiow velocities may not accurately reflect relative interhemispheric differences.