Intravenous administration of morphine sulfate in hepatobiliary imaging for acute cholecystitis: a review of clinical efficacy.

Morphine sulfate has been used by several investigators in the cholescintigraphic diagnosis of acute cholecystitis. A review of the available literature indicates that morphine sulfate significantly reduces the total time required for the hepatobiliary examination, while retaining both high sensitivity (98.8%) and specificity (88.9%).