窄带成像技术联合放大内镜在早期胃癌诊断中的价值

Progress in Modern Biomedicine(2017)

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Abstract
目的:评估比较窄带成像技术联合放大内镜(narrow band imaging-magnifying endoscopy,NBI-ME)在早期胃癌诊断中价值.方法:115例早期胃癌患者行NBI-ME观察,采集照片并做出内镜下诊断,于病灶最明显处取活检并行病理检查.所有患者接受内镜下治疗,术后行病理活检.分别计算NBI-ME、内镜活检诊断早期胃癌的敏感度、特异度、阳性预测值、阴性预测值、准确率.结果:115例患者纳入本研究,最终术后切除病理示低级别上皮内瘤变(low-grade neoplasia,LGIN)16例,高级别上皮内瘤变(high-grade neoplasia,HGIN)30例,分化型胃癌59例,未分化型胃癌10例.NBI-ME诊断早期胃癌的敏感度、特异度、阳性预测值、阴性预测值、准确率分别为98.0 %、81.3%、97.0%、86.7%、95.7%,内镜活检的对应值分别为82.8%、87.5%、97.6%、45.2%、83.5%.NBI-ME诊断早期胃癌的敏感度及准确率均明显高于内镜活检(P<0.05).结论:NBI-ME对早期胃癌具有较高诊断价值.
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