Iodine vs barium: Gastografin (diatrizoic acid) is radiocontrast agent containing iodine and may be used as an alternative to barium sulfate for medical imaging of the gastrointestinal tract, such as upper gastrointestinal series and small bowel series. It is indicated for use in patients who are allergic to barium, or in cases where the barium might be the contraindicated.
Answered 12/12/2017
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