目的超声监测下将人工血管动静脉内瘘（arteriovenous prosthetic graft,AVG）狭窄干预阈值下调,评估AVG的次级通畅率及通路结局。方法......

目的超声监测下将人工血管动静脉内瘘(arteriovenous prosthetic graft,AVG)狭窄干预阈值下调,评估AVG的次级通畅率及通路结局。方......