血管滋养血管：颈动脉弦征的另一个原因。
Vasa vasorum: another cause of the carotid string sign.
作者信息
Martin M A, Marotta T R
机构信息
Department of Neuroradiology, Vancouver General Hospital, BC, Canada.
出版信息
AJNR Am J Neuroradiol. 1999 Feb;20(2):259-62.
Abstract
BACKGROUND AND PURPOSE
Our purpose was to describe a variant of the carotid string sign that may be associated with a completely occluded vessel and to consider possible pathophysiological mechanisms for this observation.
METHODS
Carotid angiography was performed in three patients with suspected carotid stenosis and in a fourth with carotid dissection. Surgery was performed in one of the patients with carotid stenosis.
RESULTS
On all angiograms, instead of a single linear or curvilinear contrast "string," either single or multiple serpiginous channels were seen. In one case, such a channel was seen emanating from below the origin of an occluded internal carotid stump, reconstituting the distal portion of the vessel. Surgery revealed a completely occluded lumen with a small intramural vessel bypassing the obstruction.
CONCLUSION
We propose that these channels are either atherosclerotically induced neovessels connecting bridging vasa vasorum or recanalized luminal thrombus. We review the literature associated with this subject.
摘要
背景与目的
我们的目的是描述一种可能与完全闭塞血管相关的颈动脉串珠征变体，并探讨这一观察结果可能的病理生理机制。
方法
对3例疑似颈动脉狭窄患者和1例颈动脉夹层患者进行了颈动脉血管造影。其中1例颈动脉狭窄患者接受了手术。
结果
在所有血管造影中，均未见到单一的线性或曲线状对比剂“串珠”，而是可见单个或多个蜿蜒的通道。在1例病例中，这样一个通道发自闭塞的颈内动脉残端起始部下方，重建了血管的远端部分。手术显示管腔完全闭塞，有一条小的壁内血管绕过阻塞部位。
结论
我们认为这些通道要么是动脉粥样硬化诱导的连接桥接血管滋养血管的新生血管，要么是再通的腔内血栓。我们回顾了与此主题相关的文献。
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