椎底动脉延长症患者MRI影像学表现及出现后循环脑梗死的高危因素分析

MRI Imaging Findings in Patients with Vertebrobasilar Artery Lengthening and Risk Factors for Posterior Cerebral Infarction

目的探究椎底动脉延长症患者MRI影像学表现及出现后循环脑梗死的高危因素分析。方法选取2013年6月至2018年8月我院神经内科收治的100例VBD患者作为研究对象,在MRI图像上检测患者椎底动脉最大内径,同时对基底动脉行高度评分及位置评分,观察基底动脉与存在椎底动脉血流淤滞、后循环脑梗死关系。结果 100例VBD患者,发现50例患者头颅在T1WI、FLAIR图像显示椎底动脉"亮血管征",36例患者存在后循环脑梗死;MRA图像显示9例基底动脉梭形动脉瘤形成。"亮血管征"阳性组基底动脉位置评分、基底动脉总评分及基底动脉内径高于阴性组,差异具有统计学意义(P<0.05)。后循环脑梗死阳性组基底动脉位置评分、基底动脉总评分明显高于对照组,差异具有统计学意义(P<0.05)。结论 VBD患者基底动脉位置偏移与后循环脑梗死显著相关。

Objective To investigate the MRI imaging findings in patients withvertebrobasilar artery lengthening(VBD)and the risk factors of posterior cerebral infarction(POCI).Methods From June 2013 to August2018,100 patients with VBD were treated in our Hospital.The maximum internal diameter of the vertebral artery was measured on the MRI image.The height and location of the basilar artery were scored.The relationship between the basilar artery and the presence of vertebral artery blood stasis and posterior circulation cerebral infa rction was observed.Results In 100 patients with VBD,the skulls of 50 patients showed s"bright vessel"signs of vertebral artery upon T-WI and FLAIR images,and36 patients had posterior circulation cerebral infarction.MRA images showed 9 cases had fusiform aneurysm formation in basilar artery.The location score,total score and the internal diameter of basilar artery were higher in the"bright vessel"positive group than in the negative group(P<0.05).The location sco re and total sco re of basilar artery in the POCI positive group we re significantly higher than those in the control group(P<0.05).Conclusion The positional deviation of basilar artery in patients with VBD is significa ntly associated with POCI.