色素放大结肠镜诊断结直肠隆起性病变的临床应用

目的 探讨色素放大结直肠镜结合Kudo分型在诊断结直肠病变中的临床应用价值。方法 对125例病人行常规内镜诊断后，对结直肠新生儿进行染色并结合Kudo分型作出色素放大内镜诊断，取标本作病理检查，将仙和色素放大内镜诊断结果与病理诊断结果相比较，观察符合率。结果 在125例病灶中，普通内镜下诊断为炎性息肉，管状腺瘤，绒毛状腺瘤和结直肠癌的病理符合率分别为：95．6％，80．0％，90．0％和100％，总病理符合率为85．6％；色素放大内镜诊断的病理经分别为100．0％，93．8％，99％和100．0％，总病理经为95．2％。结论 色素放大结肠镜对判断结直肠病变的性质有较高的病理符合率，并能有效提高微小，表浅隆起型病灶的检出率，具有较高临床应用价值。

Clinical application of magnifying chromoscopy in detection and diagnosis of colorectal elevated lesion

Objective To evaluate the clinical value of magnifying chromoscopy in combination with Kudo criteria in detection and diagnosis of colorectal lesions. Methods After conventional electronic colonoscopic diagnosis of 125 colorectal lesions, staining and magnifying observation by chromoscopy were made with Kudo criteria, and biopsy specimen and resected samples were sent for pathologic examinations. Results The accuracy of ordinary colonoscopy and magnifying colonoscopy compared with histological diagnosis of inflammatory polyps, tubular adenomas, villous adenomas and colorectal cancer was 95.62%, 80%, 90% and 100% respectively and 100%, 93.75%, 92.86% and 100% respectively. The overall accuracy of two procedures was 85.6% and 95.2% respectively. Conclusions Magnifying chromoscopy is valuable in detection of tiny and slightly elevated colorectal lesion, and has high efficacy in judging the nature of lesions with Kudo criteria.