近年来 ,利用放射性核素及其标记化合物行肿瘤显像在肿瘤诊断和疗效观察等方面的价值日益受到关注。目前 ,以单克隆抗体或基因工程抗体放射免疫显像 (RII)、基因表达显像及分子显像探针等肿瘤分子核医学应用的研究较多[1,2 ] 。核医学分子功能代谢显像是现代医学成像重要组成内 In recent years, the use of radionuclide and its labeled compounds for tumor imaging in the diagnosis of tumors and the efficacy of observation has become increasingly concerned about the value. At present, there are many researches on the application of tumor molecular nuclear medicine such as radioimmunoimaging (RII), gene expression imaging and molecular imaging probes with monoclonal antibodies or engineered antibodies [1,2]. Nuclear medicine Molecular functional imaging is an important component of modern medical imaging