【摘要】 <正> 近年来外周血淋巴细胞微核测定法在辐射损伤诊断中应用的报道较多。淋巴细胞微核测定存在的主要问题是:(1)灵敏度较差。(2)整体和离体照射效应不一致。无法建立剂量效应关系的刻度曲线,不能据此估算受照剂量。为了克服这两个更多还原

【Abstract】 The total micronuclear rate of peripheral blood T—lymphocyte among 100 medical diagnostic x ray workers and 52 non—irradiated medical workers has been studied. It is found that the mean value of the micronuclear rate of the non—irradiated medical group is about 2.58±1.26％. There are no differences between different age and different sex groups. The total T—lymphocyte mieronuclear rate of the irradiated group is significantly higher than that of the control group. The micronuclear rate of the irradiated gronp whose cumulative irradiated dose exceeds 6500 mrem and the irradiated dose per year exceeds 300 mrem is higher than those whose cumnlative close is lower than 6500 mrem and the irradiated dose per year is lower than 300 mrem respectively. Within the dose range of this study, there is no linear correlation between the total micronuclear rate of T-lymphocyte and the dose per year or the cumulative irradiated dose.更多还原