Abstract
Peripheral blood cell counts are important biomarkers of radiation exposure. With the successful application of a simplified compartmental modeling approach to simulate the perturbation of hematopoiesis system in humans after radiation exposure, we recently developed a HemoDose software program to estimate absorbed dose based on multi-type blood cell counts. Testing with patient data in some historical accidents indicates that either single or serial granulocyte, lymphocyte, leukocyte, or platelet counts after exposure can be robust indicators of the absorbed doses. In this work, the first week lymphocyte counts of five patients in the 2011 Bulgaria radiation accident are used to do serial points and single point calculations with HemoDose. Overall, the estimated doses are in good agreement with those evaluated with cytogenetic analysis in two independent laboratories. The program also confirms that calculation with individual reference counts can significantly increase the accuracy of this simple dose estimation algorithm. These results indicate that HemoDose can be employed as an easy-to-use and deployable biodosimetry tool for predicting the clinical severity, treatment, and survivability of exposed individuals and triaging those with minimum or no exposure, especially in a large-scale nuclear/radiological disaster scenario involving mass casualties.
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Acknowledgments
The opinions or assertions contained herein are the private views of the authors and are not necessarily those of the Wyle Science, Technology and Engineering, the Armed Forces Radiobiology Research Institute, the Uniformed Services University of the Health Sciences, the University of Nevada, the U.S. Department of Defense, or National Aeronautics and Space Administration (NASA). This work was supported by NASA Space Radiation Risk Assessment Project and the University of Nevada, Las Vegas. We are thankful for many years of collaboration with Dr. Olga Smirnova.
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Hu, S., Blakely, W., Cucinotta, F. (2015). Radiation Dose Assessment by Using Lymphocyte Counts. In: Apikyan, S., Diamond, D. (eds) Nuclear Terrorism and National Preparedness. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-9891-4_24
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DOI: https://doi.org/10.1007/978-94-017-9891-4_24
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