消化道出血８０ %以上是由于胃、十二指肠溃疡、食管静脉曲张破裂和肿瘤所致［１］,诊断主要依靠临床和内窥镜、钡餐等检查 ,但小肠和胆道病变引起的消化道出血诊断困难。现将我院对１６例怀疑小肠病变引起的急、慢性及反复消化道出血患者作选择性肠系膜上动脉造影 ,其中１２例 More than 80% of gastrointestinal bleeding due to stomach, duodenal ulcer, esophageal varices and tumors caused by [1], the diagnosis mainly depends on the clinical and endoscopy, barium meal and other tests, but the small intestine and biliary tract lesions caused by the digestive tract Bleeding diagnosis difficult. Now in our hospital on 16 cases of suspected small intestine lesions caused by acute, chronic and recurrent gastrointestinal bleeding in patients with selective superior mesenteric artery angiography, of which 12 cases