"GI fistulae"
"suspected GI bleeding: may obscure the acute blood/contrast leak"
"CT enteric contrast media are most commonly administered by mouth, although may also be given by way of an enteric catheter (e.g. nasoenteric, PEG, etc.), via a stoma (e.g. ileostomy) or per rectum."
"In some patients, it is helpful to give a neutral contrast agent, e.g. water, to distend the stomach/bowel and make it easier to see the stomach/bowel wall. This is particularly helpful if there is a clinical concern of bowel ischaemia. Neutral oral agents may also be used for CT enterography."
Expected headings
"Routes"
"Preparation"
"Neutral contrast media"
"Timing"
"The timing of administration of the contrast media is also clearly important. If given too long before (or too close to) the time of the CT examination then it may have already passed by (or not yet reached) the area of interest. There is a certain art to getting the timing right as speed of bowel transit varies considerably, especially in disease states."