本文通过8例骨肉瘤离体组织放射灭活的组化实验与电镜观察结果表明:离体骨肉瘤细胞放射致死量为60～100万rad,相当于体内骨肉瘤细胞放射致死量的30倍。如此之大的放射线剂量,现有医用~(60)Co机是不能胜任的。为此,“骨肉瘤放射灭活再植”目前尚不宜应用于临床,只有乏氧细胞的问题解决之后,方为临床应用创造条件。至于放射灭活的动物实验及大块模拟实验有待今后进一步探讨。 In this paper, radioimmunoassay and electron microscopy observations of 8 cases of osteosarcoma tissue explants showed that the radioactivity lethality of isolated osteosarcoma cells was 60-100 million rad, which was equivalent to 30 times the radiation lethal dose of osteosarcoma cells in vivo. With such a large dose of radiation, the current medical ~(60)Co machine is incompetent. For this reason, “radioactive inactivation of osteosarcoma” is not yet suitable for clinical use. Only after the problem of hypoxic cells is solved, can clinical conditions be created. As for radiation-inactivated animal experiments and large-scale simulation experiments to be further explored in the future.