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随着社会经济的发展,我国结直肠癌的发病率逐年上升,但目前我国诊断的结直肠癌仍是以进展期为主,早期结直肠癌所占比例不到10%~([1])。结直肠肿瘤推荐筛查方法包括粪便隐血试验、乙状结肠镜、结肠镜检查等,结肠镜检查被视为其他结肠癌筛查方法可靠性的参考标准,但由于结直肠黏膜色泽单一,普通白光内镜下观察结直肠黏膜无法呈现良好的对比,对微小病变的筛查受到较大的限制,结直肠息肉的漏诊率高达20%~([2])。目前公认90%以上
With the development of society and economy, the incidence of colorectal cancer in our country increases year by year, but the diagnosis of colorectal cancer in our country is still mainly in the advanced stage, and the proportion of early colorectal cancer is less than 10% ~ ([1]) . Colorectal cancer recommended screening methods include fecal occult blood test, sigmoidoscopy, colonoscopy, colonoscopy is considered as a reference standard for the reliability of other colon cancer screening methods, but due to the single color of colorectal mucosa, ordinary white endoscopy Under the observation of colorectal mucosa can not show a good contrast, the screening of small lesions subject to greater restrictions, the rate of misdiagnosis of colorectal polyps as high as 20% ~ ([2]). Currently recognized more than 90%