儿童胃肠道的影像学检查一直是近年来研究的难点与热点。其中又由于小肠肠腔各部互相重叠、盘曲,内镜难以达到,所以儿童小肠疾病的无创性检查是临床迫切需要解决的一个难题。以往小肠疾病的诊断主要依靠小肠钡剂灌肠检查(SBE),但SBE需要插管,操作较复杂,且患儿痛苦,依从性较差? Imaging of children’s gastrointestinal tract has been the study of the difficulties and hot spots in recent years. Among them, due to the various parts of the intestine and intestine overlap each other, coiled, difficult to achieve endoscopy, so non-invasive examination of children with intestinal diseases is an urgent need to address a difficult problem. In the past, the diagnosis of small bowel disease mainly depends on small intestine barium enema examination (SBE), but SBE need intubation, the operation is more complicated, and the children suffering, poor compliance?