方法

我们研究了3例转至本院的早期结直肠癌患者。 CV染色后，采用LCI模式进行内镜下放大检查。通过比较术前内镜诊断图像和治疗后的组织病理结果来评估这种方式的疗效。

Methods: We studied 3 patients with early stage colorectal cancer who were referred to our hospital. After CV spraying, high-magnification endoscopy was conducted by using the LCI mode. Efficacy of this modality was evaluated by comparing the preoperative diagnostic endoscopic images with posttreatment histopathologic findings.

结果

在2例直肠癌中虽然常规内镜检查不能排除黏膜下癌的可能性，但使用CV染色后LCI模式诊断为黏膜癌。 最后，进行了EMR，并实现了根治性切除。 在1例乙状结肠癌病例中，常规内镜和CV放大内镜下均提示为黏膜下癌。 然而，通过新方法诊断出为黏膜癌，EMR实现了根治性切除。   

Results: In 2 cases of rectal cancer, although conventional endoscopic examination could not exclude the possibility of submucosal cancer, use of the LCI mode with CV staining confirmed mucosal cancer. Eventually, EMR was conducted and achieved curative resection. In 1 case of sigmoid colon cancer, both conventional and CV magnification endoscopy suggested submucosal cancer. However, mucosal cancer was diagnosed by the novel method, and EMR achieved curative resection.