胚胎大脑后动脉在后循环脑梗死中的影像学研究

Study on imaging of posterior embryonic cerebral artery in the posterior circulation infarction

目的通过影像学分析后循环脑梗死与胚胎大脑后动脉的关系,探讨胚胎型大脑后动脉可否成为后循环脑梗死发生发展的一个预示性标志。方法收集本院诊治的2341例后循环脑梗死患者,经头颅MRI、DWI证实梗死部位在后循环供血范围内以及胚胎型大脑后动脉的有无情况,分析胚胎型大脑后动脉与后循环脑梗死、动脉硬化的相关性。结果 2341例研究对象中有后循环脑梗死患者1012例(41.63%),其中左侧后循环脑梗死314例,右侧后循环脑梗死295例,双侧后循环脑梗死403例。有胚胎型大脑后动脉患者578例(23.78%),其中胚胎大脑后动脉左侧179例,胚胎大脑后动脉右侧257例,胚胎大脑后动脉双侧142例。脑动脉硬化患者1193例(49.1%)。胚胎大脑后动脉与无胚胎大脑后动脉患者脑动脉硬化及后循环脑梗死的发生率差异性有统计学意义(P<0.05);而不同胚胎大脑后动脉位置的患者,脑动脉硬化及后循环脑梗死的发生率差异无统计学意义(P>0.05)。结论胚胎型大脑后动脉和后循环脑梗死具有显著相关性,胚胎型大脑后动脉的发生可显著增加后循环脑梗死的发生率。

Objective To analyze the relationship between the posterior circulation cerebral infarction and posterior embryonic cerebral artery,and to explore the possibility of posterior embryonic cerebral artery to be predictive indicator for the occurrence and development of the posterior circulation infarction.Methods A total of 2341 posterior circulation cerebral infarction patients in our hospital were recruited,and its location was confirmed in infarction circulation blood supply range and existence condition of posterior embryonic cerebral artery was explored by head MRI and DWI.The correlation between posterior embryonic cerebral artery and posterior circulation cerebral infarction,arteriosclerosis.Results Among the 2341 patients,there were 1012(41.63%)patients with posterior circulation infarction,including 314 cases with left posterior circulation infarction,295 cases with right posterior circulation infarction,403 cases with bilateral posterior circulation infarction.There were 578(23.78%)patients with embryonic posterior cerebral artery,including 179 cases with left posterior cerebral artery,257 cases with right posterior cerebral artery,and 142 cases with bilateral posterior cerebral artery.There were 1193(49.1%)patients with cerebral arteriosclerosis.The incidences of cerebral arteriosclerosis and posterior circulation cerebral infarction showed significant difference in the embryo posterior cerebral artery and non-embryo posterior cerebral artery patients(P<0.05),but no significant difference in posterior embryonic cerebral artery patients with different locations(P>0.05).Conclusion Embryonic posterior cerebral artery has a significant correlation with posterior circulation cerebral infarction,and can significantly increase the incidence of posterior circulation cerebral infarction.