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铜是人体代谢的必需金属元素。铜稳态失衡可导致遗传性铜代谢障碍疾病，其在肿瘤增殖中也起着重要作用。近年放射性金属核素显像剂的研发取得较大进展，分子显像迅速成为检测机体铜代谢的新型检查技术。通过n 64CuCln 2 PET显像追踪机体铜离子变化可对铜代谢异常疾病及高铜代谢肿瘤进行诊断。同时，n 64CuCln 2的βn -衰变和电子俘获具有治疗作用，可直接用于肿瘤核素治疗。因此，n 64CuCln 2作为诊疗一体化的放射性药物，是当前分子影像学的研究热点。该文对n 64CuCln 2的制备、生物代谢及其在铜代谢异常疾病和肿瘤诊疗中的研究进展进行综述。n “,”Copper is an essential metal element for human metabolism. Copper homeostasis can lead to inherited disorders of copper metabolism and also play an important role in tumor proliferation. In recent years, great progress has been made in the research and development of radioactive metal nuclide tracers, and molecular imaging quickly becomes a new inspection technology for detecting copper metabolism. n 64CuCln 2 carries out PET imaging diagnosis of diseases with abnormal copper metabolism and tumors with high copper metabolism through real-time tracking of changes of copper ions in the body. At the same time, β n - decay and electron capture of n 64CuCln 2 have a therapeutic effect, and can be directly used for tumor nuclide therapy. Therefore, n 64CuCln 2, as an integrated radiopharmaceutical for diagnosis and treatment, is the current research focus of molecular imaging. This article reviews n 64CuCln 2 preparation, biological metabolism and its application in the diagnosis and treatment of abnormal copper metabolism diseases and tumors.n