肝癌的早期检出并及时治疗是提高肝癌患者生存期的关键,关于小肝癌(直径≤3 cm)的研究是近20年肝癌临床史上出现的重要事件,早期发现和早期治疗是提高生存率和降低复发率的关键,也促进了诊断、治疗和预后等概念的更新[1]。对微小肝癌(直径≤1 cm)病灶的检出率不高,各种影像学检 The early detection and timely treatment of hepatocellular carcinoma is the key to improve the survival of patients with liver cancer. The study on small hepatocellular carcinoma (diameter ≤3 cm) is an important clinical event in the history of hepatocellular carcinoma in the past 20 years. Early detection and early treatment is to improve the survival rate and The key to reducing the recurrence rate also facilitates the update of concepts such as diagnosis, treatment and prognosis [1]. Small liver cancer (diameter ≤ 1 cm) lesion detection rate is not high, a variety of imaging examination