动态CT灌注成像评估颈动脉血运重建术对慢性脑缺血的疗效
Dynamic CT perfusion to assess the effect of carotid revascularization in chronic cerebral ischemia.
作者信息
Roberts H C, Dillon W P, Smith W S
机构信息
Department of Radiology, University of California, San Francisco 94143, USA.
出版信息
AJNR Am J Neuroradiol. 2000 Feb;21(2):421-5.
Abstract
We present the case of a female patient who was studied with dynamic contrast-enhanced CT perfusion before and after carotid revascularization. Before treatment, there was decreased perfusion in the ipsilateral insula, which was shown to be resolved on the scan obtained 1 day after treatment, indicating the technical success of the revascularization. In the ipsilateral basal ganglia, there was delayed contrast agent clearance from the tissue, which was attributed to vasodilation; after revascularization, there remained a subtle stenotic effect. The observed changes in the dynamic CT perfusion study suggest that this technique may be a useful tool in the evaluation of patients with asymmetrical cerebral blood flow.
摘要
我们报告了一例女性患者的病例，该患者在颈动脉血运重建前后接受了动态对比增强CT灌注检查。治疗前，同侧脑岛灌注减少，而在治疗后1天获得的扫描显示灌注已恢复，表明血运重建技术成功。在同侧基底节区，造影剂从组织中清除延迟，这归因于血管扩张；血运重建后，仍存在轻微的狭窄效应。动态CT灌注研究中观察到的变化表明，该技术可能是评估脑血流不对称患者的有用工具。
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