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消化道肿瘤是常见的恶性肿瘤之一 ,全世界每年胃癌新发病例达 60万 ,居各种恶性肿瘤发病的首位 ,结肠癌发病为 2 0 67万 ,居第五位[1 ] ,它们严重危害人类的健康 ,要提高肿瘤患者的生存率 ,关键在于对肿瘤的早期发现、早期诊断和及时手术切除治疗。然而 ,目前临床采用的内窥镜
Gastrointestinal cancer is one of the most common malignant tumors. The number of newly diagnosed cases of gastric cancer in the world reaches 600,000 each year, ranking the first place in the incidence of various malignancies. The incidence of colon cancer is 20.67 million, ranking the fifth place [1] Endangering human health, to improve the survival rate of cancer patients, the key lies in the early detection of tumors, early diagnosis and timely surgical resection. However, the endoscopic currently used clinically