Abstract: Objective  To evaluate the safety and feasibility of distal transradial artery access (dTRA) for cerebral angiography. 
Methods  The clinical data of patients with cerebrovascular diseases who underwent cerebral digital subtraction angiography via dTRA from April to October 2021 in Beijing Daxing District People's Hospital were retrospectively analyzed.
Results  A total of 150 patients were included, and 142 patients (94.7%) underwent cerebral angiography via dTRA successfully. For the 142 patients, the mean time for puncture was 122.9±77.4 seconds, ranging 55-387 seconds, and the mean time for the procedure was 31.5±7.3 minutes, ranging 20-50 minutes; local hematoma occurred in 2 cases (1.4%), radial artery spasm occurred in 7 cases (4.9%), and thumb numbness ocurred in 8 cases (5.6%), and the rest had  no complications.
Conclusions  Cerebral angiography via dTRA is safe and feasible. Improving the distal radial artery puncture and bandaging can increase the success rate of surgery and reduce the incidence of postoperative complications.

Key words: Digital subtraction angiography; Distal transradial artery access; Safety; Feasibility

摘要： 目的 评估经远端桡动脉入路（distal transradial artery access，dTRA）行DSA的安全性、可行性，并探讨可提高手术成功率及降低术后并发症的手术策略。
方法 回顾性分析2021年4-10月在北京市大兴区人民医院拟经dTRA行DSA的脑血管病患者的诊疗情况及并发症发生情况。
结果 150例患者中142例经dTRA顺利完成DSA，成功率为94.7%。患者穿刺时间为55～387 s，平均122.9±77.4 s；手术总时间为20～50 min，平均31.5±7.3 min。142例患者中2例（1.4%）发生局部血肿，7例（4.9%）发生桡动脉痉挛，8例（5.6%）发生拇指麻木，其余患者均无并发症出现。
结论 经dTRA行DSA安全、可行、舒适性高，提高远端桡动脉穿刺技术水平和改善包扎技术水平可极大提高手术成功率并降低术后并发症的发生率。

关键词: 数字减影血管造影; 远端桡动脉入路; 安全性; 可行性