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Cholegraphy

 
, medical expert
Last reviewed: 20.11.2021
 
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Holegraphy is an x-ray examination of the gallbladder and bile ducts. Hepatotropic iodine-containing contrast medium is administered intravenously slowly. The drug combines with blood proteins, is captured by hepatocytes and excreted with bile. Since its concentration in the bile is relatively high, shadows of the bile ducts first, and then of the gall bladder, appear successively in the pictures produced 5-7 min after the contrast preparation. The main purpose of choleography is to obtain functional and morphological data on the state of the biliary system. Note that in connection with the development of sonography, the role of holegraphy, as well as of cholecystography, decreased.

It is carried out only in those cases when the results of sonography are doubtful, as, for example, in the study of the retrobulbar region of the common bile duct, when ultrasound is not always effective.

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