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  • Title: Variable bile retention on cholescintigraphy after morphine administration.
    Author: Kim CK, Lim JK, Machac J.
    Journal: Eur J Nucl Med; 1996 Nov; 23(11):1464-7. PubMed ID: 8854843.
    Abstract:
    Intravenous morphine sulfate has been used in conjunction with cholescintigraphy. We studied the variations in the degree and duration of the effects of 2 mg morphine on biliary kinetics in patients with gallbladder nonvisualization and undertook a comparison with biliary kinetics in patients not given morphine. Of 24 morphine-augmented cholescintigrams that were obtained without additional injection of technetium-99m diisopropyl-iminodiacetic acid (DISIDA), 19 showed continued gallbladder nonvisualization. Time-activity curves (TACs) of the liver parenchyma and common bile/hepatic duct (CD) of the entire study (before and after morphine) were obtained. In two patients, the CD was not sufficiently visualized to define a region of interest. In 17 patients, the peak CD activity was observed between 14 and 47 min after injection of 99mTc-DISIDA. In these 17, the TAC of the CD was declining essentially in parallel with the TAC of the liver parenchyma at the end of the first hour before morphine. After morphine injection, CD activity slowly increased for a variable duration in nine patients, while it continued to decrease in eight. CD activity between 1 h and 2 h showed a continuously decreasing pattern in another group of 20 patients who did not receive morphine despite gallbladder nonvisualization at 1 h. In summary, no significant effect of 2 mg of intravenous morphine on biliary kinetics was detected scintigraphically in a considerable proportion of patients. Also, there was considerable variation in the duration of the effect of morphine, when such an effect was present. This observation may have significant clinical implications for morphine-augmented cholescintigraphy.
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