A randomized controlled trial of treatment of portal vein tumor thrombus after hepatocellular carcinoma resection

INTERVENTION: Group 2:TACE+Laser ablation: One week after TACE, laser ablation is given to the PVTT. ;Group 1:TACE: The chemotherapeutic drugs and 2 to 10 ml lipiodol are given via hepatica propria artery. The chemotherapeutic drugs include 5‐Fu 1500 mg, epirubicin 30 mg, cisplatin 30 mg. ; CONDITION: Portal vein tumor thrombus after hepatocellular carcinoma resection PRIMARY OUTCOME: distal metastasis;overall survival; SECONDARY OUTCOME: clinical presentation;laboratory findings;the changes of the PVT; INCLUSION CRITERIA: 1. PVTT after liver resection was diagnosed with at least two types of imaging findings, such as CT, MRI or color doplor findings; 2. The functions of the kidney, heart and lung and the routine test of the blood are in good condition; 3. The liver function is of grade A or B in Child‐Pugh classification; 4. The patient is eligible of the trial and will show consent to the test.