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目的探讨以给予核素肝胆显像剂后6h作为肝胆显像时间终止点的可能性。方法回顾性地分析178例核素肝胆显像结果。采用双盲法分析,根据给药后6和24h内的图像有无肠道放射性聚集来诊断先天性胆道闭锁。若在显像终止点肠道内仍无放射性聚集,则认为是先天性胆道闭锁导致的黄疸。结果每个观察者对于每个病例的6h以及24h的影像诊断意见均一致。观察者之间,有159例显像诊断意见一致。结论建议行肝胆核素显像进行黄疸原因鉴别诊断时,若延迟至6h仍未发现肠道有放射性存在,则进行24h显像意义不大。
Objective To explore the possibility of using hepatobiliary imaging at 6 hours as the end point of hepatobiliary imaging. Methods A retrospective analysis of 178 cases of radionuclide hepatobiliary imaging results. A double-blind analysis was used to diagnose congenital biliary atresia based on the presence or absence of intestinal radioactivity in the images within 6 and 24 hours after dosing. If there is no radioactive accumulation in the gut at the end of imaging, it is considered to be jaundice caused by congenital biliary atresia. Results Each observer was consistent with the imaging diagnosis at 6 hours and 24 hours in each case. Observers, there are 159 cases of imaging diagnosis consistent. Conclusions When it is suggested to differentiate the cause of jaundice in hepatobiliary radionuclide imaging, if the intestinal radioactivity is still not found after 6 hours, the significance of 24h imaging is not obvious.