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[目的]探讨基底动脉弯曲与后循环梗死发生的关系.[方法]选取2014年6月至2016年6月本院收治的后循环脑梗死患者87例作为脑梗死组,选取同期磁共振血管成像(magnetic resonance aniogra-phy,M RA)正常的健康体检者60例作为对照组,分析两组基本资料,并采用多因素Logistic回归分析基底动脉弯曲与后循环脑梗死发生的关联性.[结果]脑梗死组糖尿病、高血压、吸烟、基底动脉弯曲≥2级、椎动脉优势的发生率显著高于对照组(P<00.5),脑梗死组扭曲度数(tortuosity coefficient,TC)、基底动脉理论长度(basilar artery length,BAL)、基底动脉弯曲长度(bending length,BL)高于对照组(P<00.5);Logistic回归分析显示糖尿病、高血压、基底动脉弯曲≥2级、TC、BL是影响后循环脑梗死发生的独立危险因素.[结论]基底动脉弯曲与后循环梗死发生具有关联性,糖尿病、高血压、吸烟等为后循环脑梗死发生的独立危险因素.“,”[Objective]To investigate the correlation between basilar artery tortuosity and posterior circu-lation infarction .[Methods]A total of 87 patients with posterior circulation cerebral infarction who were ad-mitted to the hospital between June 2014 and June 2016 were included in the cerebral infarction group .Another 60 healthy persons who underwent magnetic resonance angiography (MRA) in the same period were selected as the control group .The basic data of the two groups were analyzed ,and the relationship between basilar ar-tery tortuosity and posterior circulation cerebral infarction was analyzed by multivariate Logistic regression a-nalysis .[Results]The probabilities of diabetes ,hypertension ,smoking ,basilar artery tortuosity ≥ grade 2 and vertebral artery dominance in the cerebral infarction group (40 .23% ,65 .52% ,33 .33% ,56 .32% and 632.2% ,respectively ) were higher than those in the control group (13 .33% ,28 .33% ,16 .67% ,18 .33% , 416.7% ,respectively) with significantly statistical difference (P < 0 .05) The tortuosity coefficient (TC) , theoretical basilar artery length (BAL) and bending length (BL) in the cerebral infarction group were higher than those in the control group ( P <00.5) .Logistic regression analysis showed that diabetes ,hypertension , basilar artery tortuosity ≥ 2 ,TC and BL were the independent risk factors for posterior circulation cerebral infarction .[Conclusion]The basilar artery tortuosity is related to the incidence of posterior circulation infarc-tion .Diabetes ,hypertension and smoking are the independent risk factors for posterior circulation cerebral in-farction .