Noninvasive assessment of the circle of Willis in cerebral ischemia: The potential of CT angiography and contrast-enhanced transcranial color-coded duplexsonography

被引：14

作者：

Gahn, G

Gerber, J

Hallmeyer, S

Reichmann, H

von Kummer, R

机构：

[1] Tech Univ Dresden, Dept Neurol, D-01307 Dresden, Germany

[2] Tech Univ Dresden, Dept Neuroradiol, D-01307 Dresden, Germany

来源：

CEREBROVASCULAR DISEASES | 1999年 / 9卷 / 05期

关键词：

stroke; CT angiography; ultrasound; ultrasound contrast agent; transcranial color-coded duplexsonography;

D O I：

10.1159/000015980

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Thirty-four patients with acute hemispheric ischemic strokes underwent both CT angiography and contrast-enhanced transcranial color-coded duplexsonography (TCCD) to study the effectiveness of the combined noninvasive techniques for evaluation of the circle of Willis. In 3/34 patients, CT angiography and contrast-enhanced TCCD demonstrated middle cerebral artery (MCA) occlusion, in 5 others MCA stenosis. A severe posterior cerebral artery stenosis was missed by CT angiography. In 8 patients, contrast-enhanced TCCD failed because of poor bone windows. In these patients, CT angiography was normal. CT angiography and contrast-enhanced TCCD are complementary noninvasive diagnostic tools. Disagreements between the diagnostic findings of these methods still need further evaluation by digital subtraction angiography.

引用

页码：290 / 294

页数：5

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