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胃癌是全世界最常见的肿瘤之一,在引起癌症死亡原因中胃癌位居第二[1]。胃癌的发病率和病死率一直居我国恶性肿瘤之首,是危及国人健康的主要疾病之一。早期诊断胃癌是提高胃癌治愈率、生存率和降低死亡率的关键。由于其临床起病隐匿且早期诊断指标缺乏特异性,大多数患者就诊时已处于晚期,因此,手术常难以根治且复发率高,而包括化疗在内的其它
Gastric cancer is one of the most common tumors in the world and ranks second in the cause of cancer death [1]. The incidence of gastric cancer and mortality has been the first of malignant tumors in our country, is one of the major diseases endangering the health of Chinese people. Early diagnosis of gastric cancer is to improve the cure rate of gastric cancer, survival rate and reduce the mortality of the key. Because of its clinical onset of occult and lack of specificity of early diagnostic indications, most patients are already in advanced stages of treatment and are therefore often difficult to cure and have a high recurrence rate, whereas others, including chemotherapy