Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine · 2015
Dicentric assay: inter-laboratory comparison in Indian laboratories for routine and triage applications.
Сравнительное исследованиеОценочное исследованиеСтатьяМногоцентровое исследованиеВалидационное исследованиеНазвание и аннотация: Перевод в очереди
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Bakkiam D, Bhavani M, Anantha Kumar A Arul, Sonwani Swetha, Venkatachalam P, Sivasubramanian K, Venkatraman B
Аннотация
An Inter-Laboratory Comparison (ILC) study on Dicentric Chromosome Assay (DCA) was carried out between two Indian biodosimetry labs. Human peripheral blood samples exposed to 10 different doses of X-rays up to 5Gy were shared between the labs to generate calibration data. Validation of calibration curves was done by dose estimation of coded samples exposed to X- or gamma radiation. Reliability of the DCA data for triage application was evaluated by scoring 20, 50 and 100 metaphases in the dose range of 0.5-3.0Gy. No significant difference was observed between labs regarding the established calibration data as well as the DCA triage dose assessments. Scoring of 20 metaphases (MP) was adequate to detect radiation exposure of >2Gy whereas 50 MP were sufficient to determine exposures of 0.5Gy. Both labs performed the DCA in a reliable manner and made the first step in setting up a biodosimetry network in India.