Esophagus X-ray barium meal

X-ray barium meal examination of the esophagus is barium angiography of the digestive tract, which refers to the use of barium sulfate as a contrast agent to show the presence of lesions in the digestive tract under X-ray irradiation. Unlike barium enema, barium meal angiography takes the contrast agent by oral route, which can make a clearer radiological examination of the entire digestive tract, especially the upper digestive tract. The barium meal used for gastrointestinal examination is medicinal barium sulfate (ie, a suspension of barium sulfate), so it is insoluble in water and lipids, so it is not absorbed by the gastrointestinal mucosa, so it is basically non-toxic to humans.

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