脑缺血中 Willis 环的无创评估：CT 血管造影和对比增强经颅彩色编码双功能超声检查的潜力

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

作者信息

Gahn G, Gerber J, Hallmeyer S, Reichmann H, von Kummer R

机构信息

Department of Neurology, University of Dresden, Germany.

出版信息

Cerebrovasc Dis. 1999 Sep-Oct;9(5):290-4. doi: 10.1159/000015980.

DOI:10.1159/000015980

PMID:10473912

Abstract

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.

摘要

34例急性半球缺血性卒中患者接受了CT血管造影和对比增强经颅彩色编码双功能超声检查（TCCD），以研究这两种联合无创技术评估 Willis 环的有效性。在34例患者中的3例，CT血管造影和对比增强TCCD显示大脑中动脉（MCA）闭塞，另外5例显示MCA狭窄。CT血管造影漏诊了1例严重的大脑后动脉狭窄。8例患者因骨窗不佳导致对比增强TCCD检查失败，这些患者的CT血管造影结果正常。CT血管造影和对比增强TCCD是互补的无创诊断工具。这些方法的诊断结果之间的差异仍需通过数字减影血管造影进一步评估。