Clinical Research Directory

Inclusion Criteria: * 1.Older than 18 years old, regardless of gender; 2.In patients without cirrhosis background, hepatocellular carcinoma was definitely pathologically diagnosed within 1 month before surgery. In patients with cirrhosis background, dynamic contrast enhanced MRI/ multi-stage dynamic enhanced CT were used to determine the characteristic vascular signs of primary liver cancer (rapid heterogeneous vascular enhancement in arterial phase, rapid elution in venous phase or delayed phase); 3.The number of tumors was ≤3, and the maximum diameter of at least one tumor was 3.1-5.0cm; 4.No vascular and lymph node invasion and distant metastasis; 5.Liver function: child-pugh A or B (assessed within 14 days before surgery); 6.Subjects will understand the purpose of the study, voluntarily participate and sign the informed consent. Exclusion Criteria: * 1.Severe hepatic decompensation, presence of hepatic encephalopathy, massive ascites or gastrointestinal bleeding within 1 month; 2.Clotting disorders or bleeding tendencies (platelet count \<50 x 109 / L or INR\>1.5); 3.Patients with severe cardiac, pulmonary and renal insufficiency; 4.Combined with active infection; 5.Pregnant patients; 6.A history of drug abuse and mental illness; 7.Inability to tolerate pneumoperitoneum; 8.Other studies or anti-tumor therapists in the first four weeks of the study; 9.The researchers determined that there were any other factors that were inappropriate for inclusion or that affected participants' participation in the study.