Objective To evaluate the value of bilateral internal iliac artery (BIIA) and portal vein pump implantation chemotherapy(three pump chemotherapy,TPC) in preventing local recurrence and hepatic metastasis after radical operation of rectal carcinoma.

• 目的探讨双侧髂内动脉加门静脉置泵化学治疗（三泵化疗）预防直肠癌根治术后局部复发和肝脏转移的价值。