[3] CTE provides enough distention of the bowel not present during normal CT imaging to increase the ability to examine in lumen and internal lining of the small intestines.
[5] Additionally, compared with CT enteroclysis, the patient does not need to be sedated for CTE nor requires the invasive step of placing the nasojejunal tube.
[5] Spasm and collapse of the small intestine, which can happen in Crohn's disease, can obscure imaging of that portion of the bowel even with CTE.
Metoclopramide (Reglan) will be administered to assist with emptying the stomach and increase movement through the small intestines.
Glucagon is given to patient five minutes before they enter the CT scanner to counter act the previous medication and attempt to slow down bowel activity.