窄带成像技术在大肠息肉诊断中的临床应用

目的探讨窄带成像技术在大肠息肉诊断中的临床价值。方法2010年1月～2013年6月常规结肠镜发现88例110个直结肠息肉样病变，应用窄带及放大内镜观察其腺管开口类型，研究其与病理组织学的关系。结果NBI放大内镜对结肠肿瘤性病变的诊断符合率为91．8％，敏感性为91．4％，特异性为92．0％，准确性优于普通内镜，但差异无统计学意义。结论应用窄带及放大内镜观察结肠息肉的腺管开口类型，对息肉样病变的肿瘤性、非肿瘤性可更好地鉴别，接近病理学检查。

The efficacy of narrow-band imaging in colonic polyps

Objective To approach the efficacy of narrow-band imaging （NBI） in colonic polyps. Methods All 110 colonic polyps of 88 patients were discovered by conventional colonoscopy from January 2010 to June 2013. The pit pattern were observed by NBI and magnifying endoscope,and analyzed the relation of the pit pattern and histopathology. Results The diagnose accordance rate of NBI and magnifying endoscope in colonic polyps was 91.8% ,sensitivity was 91.4% ,specificity was 92.0% ,accuracy was better than ordinary endoscope, but had no statisticantly different. Conclusion NBI is superior to conventional colonoscopy in differentiation between neoplasm and non-neoplasm by observing the pit pattern.