恶性肿瘤如肺癌、胃癌、肠癌及胰腺癌等是危害人体健康和生命的严重疾患 ,其显著特点之一为发展快、易发生转移 ,而转移的重要器官则是肝脏。已发生肝转移的患者在对其原发病灶治疗同时 ,也应对肝脏的转移病灶进行早期诊断、积极治疗。在众多检查手段中 ,超声因其方法简便、实 Malignant tumors such as lung cancer, stomach cancer, intestinal cancer and pancreatic cancer are serious diseases endangering human health and life. One of its salient features is rapid development and easy metastasis, while the metastasis of vital organs is the liver. Liver metastases in patients with the treatment of its primary lesions at the same time, the liver should also be carried out early diagnosis of metastatic lesions, active treatment. In many means of inspection, ultrasound because of its simple, real