延迟符号普通胃镜早期胃癌的诊断普通胃镜目录1234内镜检查准备及观察癌与非癌的诊断 组织类型的诊断 浸润深度的诊断延迟符号内镜检查准备及观察011）检查前准备：气泡、黏液去除2）镇静剂使用3）消除死角（blindspot）送气延伸、胃内冲洗（气泡、黏液）4）Systematicscreeningofthestomach（SSS）5）改变空气量和观察角度YaoK,UedoN,MutoM,etal.Developmentofane-learningsystemforteachingendoscopistshowtodiagnoseearlygastriccancer:basicprinciplesforimprovingearlydetection:J.GastricCancer,2017基础知识，基本手法4YaoK,UedoN,MutoM,etal.Developmentofane-learningsystemforteachingendoscopistshowtodiagnoseearlygastriccancer:basicprinciplesforimprovingearlydet
