Results of cholescintigraphy in a VA hospital.

In a review of 200 hepatobiliary imaging studies done in a VA hospital over a 5-year period, a sensitivity of 96% and a specificity of 88% were obtained. In a subgroup of 40 patients with alcoholic liver disease, the specificity dropped to 60% although the sensitivity remained high (100%). These data indicated that in patients with alcoholic liver disease a positive DISIDA scan is not diagnostic of acute cholecystitis and cannot be interpreted as an indication for cholecystectomy. Possible modifications of imaging techniques, including delayed imaging and morphine-augmented cholescintigraphy, may prove to increase the specificity of cholescintigraphy in these patients. A prospective study using these modifications would help in determining the current role of cholescintigraphy in the diagnosis of acute cholecystitis in patients with alcoholic liver disease.