The Contrast Medium
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As we have seen in Chapter II, during the second world war barium was the generally accepted contrast medium for examination of the small intestine. The 40-year-old custom of mixing nutrients with the contrast medium was abandoned since this appeared to be the main reason that good mucosal patterns could not be obtained. The importance of good reproduction of anatomical detail had become considerable since the morphological examination of the small intestine had replaced the functional examination. The omission of nutrients however did not improve the characteristics of the contrast medium such that it could now be regarded as ideal and was considered satisfactory by everyone. It had been recognized that a good contrast medium suited for examination of the digestive tract must satisfy many requirements, namely (224):
KeywordsContrast Medium Specific Gravity Barium Sulfate Density Curve Intestinal Loop
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