目的通过分析头颈CTA的方法 进一步评价胚胎型大脑后动脉(FTP)与后 循环短暂性脑缺血的关系。方法 选取因 头晕、头痛等神经系统症状来我院行头 颈CTA扫描的患者100例，根据CTA结果分 为完全FTP组、部分FTP组、对照组。比较 入组患者临床症状、是否存在FTP、短暂 性脑缺血发生情况。结果 出现FTP的患者 有36例，占36%，出现头晕、头痛、癫痫 发作、意识丧失、共济失调、神经功能 障碍等症状，发生率明显高于对照组(P ＜0.05)，差异有统计学意义；完全FTP患 者出现双侧变异者约占15%，右侧变异者 约占50%，左侧变异者约占35%，部分FTP 患者出现双侧变异者约占12.5%，右侧变 异者约占50%，左侧变异者约占37.5%，均 高于对照组，(P＜0.05)有统计学意义； FTP组出现短暂性脑缺血的患者14例， 占38.9%，完全FTP发生短暂性脑缺血占 30%，部分FTP患者占50%，均高于对照 组，差异有统计学意义(P＜0.05)。结论 FTP患者会出现头晕、头痛、癫痫发作、 意识丧失、共济失调、神经功能障碍等症 状，且更容易出现短暂性脑缺血发作。

Objective To evaluate the relationship between the posterior cerebral artery (FTP) and posterior circulation transient ischemic by analyzing the head and neck CTA methods. Methods A total of 100 cases of head neck CTA scan in our hospital were selected with neurological symptoms such as dizziness and headache according to the results of CTA, and were divided into totally FTP group, partial FTP group and the control group. Clinical symptoms, presence of FTP and transient ischemic attack were compared. Results There were 36 patients with FTP, which accounted for 36%. There were symptoms of dizziness, headache, epileptic seizures, loss of consciousness, ataxia, nerve dysfunction, and the incidence was significantly higher than that of the control group,, the difference was statistically significant (P<0.05), in patients with complete FTP mutation in the right side (50%), on the left side of the variation is 35%, double the lateral variation accounted for 15%, 50% in patients with FTP mutation in the right side of the part, on the left side of the variation of 37.5%, 12.5% variation on both sides, were higher than the control group, the difference was statistically significant (P<0.05). FTP group in patients with transient ischemic 14 cases, accounted for 38.9%, type complete FTP are transient ischemic accounted for 30%, some FTP patients (50%), are higher than the control group, the difference was statistically significant (P<0.05). Conclusion FTP patients have symptoms of dizziness, headache, seizures, loss of consciousness, ataxia, neurological dysfunction, and the occurrence of an embryonic cerebral posterior artery, which is more likely to occur transient ischemic attacks.