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目的:探讨窄带成像(NBI)技术与染色技术对胃部疾病的诊断价值。方法:对328例常规内镜检查有病灶者行NBI检查、亚甲蓝染色检查、亚甲蓝醋酸染色检查,观察3组检查方法胃黏膜腺管形态及微血管结构变化,进行病变显示清晰度评分,评价病变性质,并与术后病理检查结果进行比较。结果:NBI组腺管结构清晰度评分优于亚甲蓝染色组(χ2=16.58,P<0.05),但与亚甲蓝醋酸染色组比较,差异无统计学意义(χ2=2.31,P<0.05);微血管结构显示评分NBI组显著高于亚甲蓝染色组及亚甲蓝醋酸染色组(χ2=18.33,P<0.05;χ2=16.74,P<0.05);NBI组镜下诊断与病理诊断符合率(83.8%)显著高于亚甲蓝染色组(73.2%)(χ2=17.12,P<0.05),但与亚甲蓝醋酸染色组(85.4%)比较,差异无统计学意义(χ2=2.74,P>0.05)。结论:NBI诊断胃部疾病效果确切,亚甲蓝醋酸染色诊断效果与NBI相近,值得推广。
Objective: To investigate the diagnostic value of narrow band imaging (NBI) and staining techniques in gastric diseases. Methods: Three hundred and thirty-eight routine endoscopic lesions were examined by NBI, methylene blue staining and methylene blue acetic acid staining. Gastric mucosal glandular morphology and microvascular structure were observed in 3 groups. , Evaluate the nature of the lesion, and compared with postoperative pathological examination results. Results: The score of ductal structure clarity in NBI group was better than methylene blue staining group (χ2 = 16.58, P <0.05), but there was no significant difference between the two groups (χ2 = 2.31, P <0.05) ). The microvascular structure showed that the NBI group was significantly higher than the methylene blue staining group and the methylene blue acetic acid staining group (χ2 = 18.33, P <0.05; χ2 = 16.74, P <0.05) (83.8%) was significantly higher than that of methylene blue staining group (73.2%) (χ2 = 17.12, P <0.05), but there was no significant difference between the two groups (χ2 = 2.74 , P> 0.05). Conclusion: NBI is effective in diagnosing gastric diseases. Methylene blue acetic acid staining is similar to NBI and worth promoting.