What is going to happen?
The nasal passage is anaesthetised with nasal spray and a small calibre tube is passed through the oesophagus into the stomach. It is further passed through the duodenum to the start of the ileum. The position of the tube is secured with an air-filled balloon
A special contrast material is injected and allowed to opacify the small bowel.
An intravenous agent is used to suppress any feeling of nausea which sometimes accompanies the study. Approximately 1500ml of contrast is injected after which the patient undergoes a CT scan using intravenous contrast material. Cross sectional imaging then evaluates the small bowel.