肝脏的特殊生理状况使其成为消化道恶性肿瘤的常见转移部位,所有消化道恶性肿瘤约1/4以上累及肝脏[1],肝脏转移瘤常累及肝脏多叶,外科手术难以切除,其手术切除率不足3%。经动脉灌注化疗栓塞(TACE)是目前介入治疗转移性肝癌的主要方法之一[2]。但肝脏转移瘤大部分病灶经门脉途径 The special physiological condition of the liver makes it a common metastatic site of gastrointestinal malignancies. About a quarter of all gastrointestinal malignancies involve the liver [1], liver metastases often involve the lobes of the liver and are difficult to remove by surgical procedures. Surgical resection The rate of less than 3%. Transcatheter arterial chemoembolization (TACE) is currently one of the main interventional treatment of metastatic liver cancer [2]. However, most lesions of liver metastases via the portal vein