自单克隆抗体问世以来,以放射性核素标记特异性抗体,进行恶性肿瘤的放射免疫显象的技术有了很大的进展。目前,普遍的观点是~(111)In是用作放射免疫显象较为理想的核素。近年来,国内的一些单位在应用核素~(131)I方面进行了一些探索和研究。在结肠癌的诊断上,选用的单抗多为抗CEA抗 Since the advent of monoclonal antibodies, radionuclide labeling of specific antibodies for radioimmunoimaging of malignant tumors has made great progress. At present, the general view is that ~(111)In is an ideal radionuclide imaging radionuclide imaging. In recent years, some domestic units have conducted some exploration and research in the application of radionuclide ~(131)I. In the diagnosis of colon cancer, the selected monoclonal antibodies are mostly anti-CEA antibodies.