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比较５种Ｘ线造影剂在免肺组织内所引起的病理变化。方法４６只家兔分７组：１组为对照组，６组分别滴注生理盐水及５种造影剂。所有家兔及其肺组织均进行Ｘ线观察及病理检查。结果碘油、钡胶浆、复方泛影葡胺、Ａｎｇｉｏｇｒａｆｉｎ、Ｏｍｎｉｐａｑｕｅ都能使兔肺组织产生炎性反应。其中前两种反应严重，持续６个月以上。后两种反应轻微，均在４６以内消退。结论Ａｎｇｉｏｇｒａｆｉｎ或Ｏｍｎｉｐａｑｕｅ是首选的造影剂
The pathological changes caused by 5 X-ray contrast agents in lung-free tissues were compared. Methods 46 rabbits were divided into 7 groups: 1 group as control group, 6 groups were instilled saline and 5 contrast agents. All rabbits and their lung tissues were examined by X-ray and pathological examination. Results Lipiodol, barium doxorubicin, trimethoprim, angiografin and Omnipaque all induced inflammatory reaction in rabbit lungs. The first two reactions were serious, lasting more than 6 months. The latter two reactions were mild, are within 46 subsided. Conclusion Angiografin or Omnipaque is the preferred contrast agent