Whole Milk is As Effective Oral Contrast Agent As Barium

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American Roentgen Ray Society

Whole milk is effective and cost-effective as oral contrast agent

An item commonly found in many homes – whole milk – is just as

effective, costs less and is easier on the patient than a diluted

(0.1%) barium suspension that is also commonly used as an oral

contrast agent in conjunction with CT to examine the gastrointestinal

tract, a new study finds.

The study included 215 patients undergoing abdominal and pelvic CT,

said Chi Wan Koo, MD, lead author of the study. All patients were

given an IV contrast media; 115 were also given whole milk as an oral

contrast agent; 100 received a 0.1% barium suspension. Two

radiologists reviewed all the images and scored them based on degree

of bowel distension and bowel wall visibility. Adequate bowel

distension is necessary to optimize resolution of the bowel wall and

contents, said Dr. Koo.

The study found that the images taken of patients who were given whole

milk were just as useful as the images that were taken of patients

given the diluted barium, she said.

In addition, patients were given a questionnaire, asking them how well

they tolerated the oral contrast agents, and a cost comparison was

done. " We found that milk was less expensive, it had better patient

acceptance and fewer adverse symptoms, " Dr. Koo said.

Whole milk and 0.1% barium suspension are valuable in the diagnosis of

small bowel disorders, such as ischemia, neoplasm and Crohn's disease,

said Dr. Koo. They are also useful in evaluating pancreatic and

biliary abnormalities.