Small bowel examination after injection of cholecystokinin.

Cholecystokinin stimulates persistalsis in the small intestine. This can be exploited to improve the technique for radiographic small bowel examination. Cholecystokinin usually reduces the barium transit time to less than 5 min. In our opinion, based on experience with 100 patients, the examination is not only accelerated but also improved in its diagnostic results, mainly because it is possible to perform the whole procedure under fluoroscopic control.