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99mTc-diethyl-iodo-HIDA (JODIDA): a new hepatobiliary agent in clinical comparison with 99mTc-diisopropyl-HIDA (DISIDA) in jaundiced patients



99mTc-diethyl-iodo-HIDA (JODIDA): a new hepatobiliary agent in clinical comparison with 99mTc-diisopropyl-HIDA (DISIDA) in jaundiced patients



European Journal of Nuclear Medicine 12(7): 346-350



The new HIDA derivative, 99mTc-diethyl-iodine-HIDA (JODIDA), was compared with 99mTc-diisopropyl-HIDA (DISIDA) in 17 patients with jaundice by means of paired cholescintigraphic imaging studies. The following parameters were visually assessed: the extent of urinary tract visualization, biliary contrast and appearance time, and gallbladder visualization and appearance time. In the 6 patients with a total bilirubin level of between 19 and 66 mumol/l (1.1 and 3.9 mg/dl), both radiopharmaceuticals gave similar results except for the moderate visualization of the urinary tract with DISIDA in contrast to JODIDA. In the remaining 11 patients with a total bilirubin level between 102 and 1303 mumol/l (6 and 76 mg/dl). JODIDA showed significant advantages over DISIDA: nonvisualization of the urinary tract, stronger and faster biliary contrast, and better gallbladder visualization. JODIDA thus offered substantial diagnostic advantages over DISIDA in 8 of these patients. In 4 patients, the differential diagnosis of jaundice (intrahepatic or mechanical disorder) was possible with JODIDA, whereas DISIDA either could not visualize intestinal or gallbladder activity at all or could not differentiate it from the urinary tract. In one patient, JODIDA offered faster (18 h) diagnosis. In the remaining 3 patients, other, substantially false interpretations could be avoided through the use of JODIDA. Further clinical experience with JODIDA in more than 40 patients confirmed the results of this study. We concluded that JODIDA is of significant advantage over DISIDA in clinical situations such as total bilirubin level above 80-100 mumol/l (4.7 to 5.8 mg/dl), examination of small children and critically ill patients and suggestion of bile leakage.

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Accession: 039024606

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PMID: 3792364


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