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  • Title: Nonvisualization of the gallbladder by 99mTc-HIDA cholescintigraphy as evidence of cholecystitis.
    Author: Paré P, Shaffer EA, Rosenthall L.
    Journal: Can Med Assoc J; 1978 Feb 18; 118(4):384-6. PubMed ID: 630497.
    Abstract:
    Cholescintigraphy with N-substituted iminodiacetic acid (HIDA) labelled with technetium-99m is a new noninvasive technique for evaluation of the hepatobiliary system. The significance of nonvisualization of the gallbladder by this method in comparison with standard radiologic examinations was studied. In 43 healthy subjects the gallbladder was visualized by the two methods. By contrast, all 27 patients in whom the gallbladder was not visualized by cholescintigraphy had cholecystitis. When visualization failed to occur, a repeat cholescintigraphic study after an injection of cholecystokinin demonstrated the status of the cystic duct. Visualization excludes cystic duct obstruction and acute cholecystitis, whereas persistent nonvisualization indicates cystic duct obstruction.
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