Study on the correlation between the circle of Willis structure and collateral circulation in bilateral carotid artery occlusion

作者：Yang Liu, Lei Zhu, Bei Hou, Tuoyi Wang, Dechao Xu, Chenxi Tan, Huiyi Zhang, Chunyan Li, Jianan Wang · 发表于：Neurological Sciences · 年份：2021 · DOI：10.1007/s10072-021-05265-4 · 被引用次数：14 · 研究领域：Cerebrovascular and Carotid Artery Diseases、Moyamoya disease diagnosis and treatment、Neurological Disease Mechanisms and Treatments

BACKGROUND AND PURPOSE: Bilateral carotid artery occlusion (CAO) is a rare condition and the collateral circulation is more complicated than in unilateral CAO. The circle of Willis (CoW) is the most important collateral circulation compensation pathway in CAO. However, the specific role of CoW in the collateral circulation compensation pathway of CAO has not been fully elucidated. The purpose of this study is to investigate the role of CoW in the collateral circulation compensation pathway of CAO. MATERIALS AND METHODS: Clinical, imaging, and hemodynamic data of 30 patients with bilateral CAO were collected to analyze the collateral blood flow compensation pathway and its characteristics, and to examine the correlation between the structure of the CoW and the collateral circulation of bilateral CAO. RESULTS: This paper summarized 30 patients with bilateral CAO. There were 0 cases of the CoW complete type, 18 cases of the partially complete type (60%), and 12 cases of the incomplete type (40%). For the partially complete type cases, there were 14 complete anterior circulation cases (46.7%). The collateral circulation collateral circulation pathway included 14 cases with anterior communicating artery(ACoA), 7 cases with posterior cerebral artery (PCA)-middle cerebral artery (MCA) leptomeningeal anastomosis (LMA), 5 cases with ophthalmic artery(OA), 3 cases with lateral posterior communicating artery(PCoA), 1 case with internal carotid artery (ICA) stealing, 1 case with new Moya...