Materials and Methods MRA of 20 regions in 19 patients with vascular access for hemodialysis were performed. 2D TOF was adopted in all patients, while 2D PC in 9 patients. Two patients underwent conventional DSA.

• 材料与方法 19例 2 0人次建立肾透析旁路患者经磁共振扫描 ,全部病例均采用二维时间飞跃法血管成像 (2D TOF) ,9例采用二维相位对比法血管成像 (2D PC) ,其中 2例行DSA检查。