1929年Pesguera首先经十二指肠导管直接注钡获得全小肠的充盈相。十年后Ghelew等经导管注钡后再注入空气进行了小肠双重对比造影。1967年Bilbao与Dotter设计了一种新型的带导丝的导管能较容易地将导管插入十二指肠。1974年Sellink改进了Bilbo—Dotter管,增加一根弯头导丝以利将导管插入十二指肠,获得了满意效果。近年来小肠双 In 1929 Pesguera first through the duodenal catheter barium injection to obtain the full intestine filling phase. Ten years later, Ghelew and other catheter infusion of barium injection of air after double contrast small bowel contrast. 1967 Bilbao and Dotter designed a new type of catheter with a guidewire that allows easier insertion of the catheter into the duodenum. Sellink improved the Bilbo-Dotter tube in 1974, adding an elbow guide wire to facilitate insertion of the catheter into the duodenum, with satisfactory results. In recent years, small intestine double