小肠长、肠袢盘曲、重叠,常规法检查费时,造影剂不能连续分布,病灶易疏漏,虽有不断改良方法,但结果仍欠满意。小肠在整个胃肠系疾病中发病率不高,临床体征也常见混淆不清,以往小肠系X线检查临床及放射科医师常重视不够。近年来国内先后采用小肠灌肠和小肠双对比造影检查,在 The small intestine grows and the intestine twists and overlaps. The routine examination is time consuming, the contrast agent cannot be distributed continuously, and the lesions are easily occluded. Despite continuous improvement, the results are still not satisfactory. The incidence of the small intestine in the entire gastrointestinal disease is not high, and clinical signs are often confused. In the past, the X-ray examination of the small intestine and radiologists usually did not pay enough attention. In recent years, domestic double enterography and small intestine double contrast examinations have been adopted.