尽管钡餐造影在筛查应用意义重大，胃肠道造影检查在临主要内容主要内容Case1BeijingCancerHospitalBeijingCancerHospitalCase2Case3Case4BeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalLow:Portnoi等:Portnoi：贲门癌及弥漫浸润型癌发病比例增高，1983年日本政府将无症状人群的大规模胃癌筛查定为一项公共卫生政策，成为唯一将胃癌筛查制度化的国家美国:相关消化道主诉及多重危险性因素的人群中进行筛查，钡餐造影对早期胃癌诊断的特异性达95％以上尽管钡餐造影在筛查应用意义重大，胃肠道造影检查在临床的应用比例近年来呈持续下降趋势。USA2001年全国胃肠道造影检查为540万例次，而到2005年这一数字为450万胃肠道钡剂造影诊断水平整体下滑,胃肠道造影技术方面投入精力较少和接受正规训练不足是主要原因主要内容半月综合征BeijingCancerHospital半月综合征苹果核征Apple-coresignBorrmann分型大肠癌的临床病理学与Borrmann分型苹果核征Apple-coresign苹果核征Apple-coresign苹果核征Apple-coresign苹果核征Apple-coresign苹果核征Apple-coresign苹果核征Apple-coresignBorrmann分型Borrmann分型BeijingCancerHospital隆起性病变?凹陷性病变?BeijingCancerHospitalBeijingcancerHospital隆起性病变?凹陷性病变?隆起性病变?凹陷性病变?隆起性病变?凹陷性病变?隆起性病变?凹陷性病变?良性溃疡?恶性溃疡?早期胃癌有无溃疡?有蒂？无蒂？有蒂？无蒂？BeijingCancerHospital一般情况下BeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospital大肠无蒂隆起病变的影像分析要点黏膜病变？肠管变形肠管变形肠壁内病变？BeijingCancerHospital肠管变形肠壁内病变？肠管变形肠管变形肠管变形主要内容Case2BeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospital浸润范围BeijingCancerHospital压迫法示意图早期癌?BeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospital充盈法主要内容Case4BeijingCancerHospitalBeijingCancerHospital对于胃肠道造影胃双对比造影读片基本顺序BeijingCancerHospitalBeijingCancerHospital大肠造影的基本读片方法BeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospital浸润深度HospitalBeijingcancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospitalBeijingCancerHospital7天后BeijingCancerHospital1月后不同器官的病变表现有何不同BeijingCancerHospital消化性溃疡Mixedsignal：multi-componentBeijingCancerHospital胃肠道钡剂造影诊断水平整体下滑,胃肠道造影技术方面投入精力较少和接受正规训练不足是主要原因透过临床现象解决科学问题