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Bayesian Reconstruction of Axial Dose Maps Using the Measurements of a Novel Detection System for Verification of Advanced Radiotherapy Treatments

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Basic Concepts in Nuclear Physics: Theory, Experiments and Applications (RÁBIDA 2018)

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 225))

Abstract

In this work, a reconstruction algorithm is used to obtain axial dose map distributions for the verification of advanced photon radiotherapy treatments. The experimental data is obtained with a detection system designed, developed and constructed specifically for this purpose. This system is basically composed by two perpendicular single sided silicon strip detectors (SSSSD) placed inside a rotating polyethylene phantom. Measured data consist on mean absorbed dose in each strip at different angular positions. Dividing the dose map into pixels, statistical bayesian methods can be applied in order to estimate pixel data from measured one. These methods are applied to a hypothetical treatment plan and the results converge to a solution of a dose map distribution that agrees with treatment planning system (TPS) calculation.

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References

  1. J. Dyk et al., Commissioning and quality assurance of treatment planning computers. Int. J. Radiat. Oncol. Biol. Phys. 26, 261–273 (1993)

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  2. M.I. Gallardo et al., System and method of radiotherapy treatment verification. Patent at the OEMP—Number ES 2,409,760, B1 (2014)

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Authors and Affiliations

  1. Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, 41013, Seville, Spain

    A. D. Domínguez-Muñoz, M. C. Battaglia, J. M. Espino, M. A. Cortés-Giraldo & M. I. Gallardo

  2. Hospital Universitario Virgen Macarena (HUVM), 41071, Seville, Spain

    R. Arráns

Authors
  1. A. D. Domínguez-Muñoz
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  2. M. C. Battaglia
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  3. J. M. Espino
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  4. R. Arráns
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  5. M. A. Cortés-Giraldo
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  6. M. I. Gallardo
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Corresponding author

Correspondence to A. D. Domínguez-Muñoz .

Editor information

Editors and Affiliations

  1. Department of Integrated Sciences, Faculty of Experimental Sciences, University of Huelva, Huelva, Spain

    José-Enrique García-Ramos

  2. Department of Atomic, Molecular and Nuclear Physics, Faculty of Physics, University of Seville, Seville, Spain

    María V. Andrés

  3. Department of Atomic, Molecular and Nuclear Physics, Faculty of Physics, University of Seville, Seville, Spain

    José A. Lay Valera

  4. Department of Atomic, Molecular and Nuclear Physics, Faculty of Physics, University of Seville, Seville, Spain

    Antonio M. Moro

  5. Department of Integrated Sciences, Faculty of Experimental Sciences, University of Huelva, Huelva, Spain

    Francisco Pérez-Bernal

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Domínguez-Muñoz, A.D., Battaglia, M.C., Espino, J.M., Arráns, R., Cortés-Giraldo, M.A., Gallardo, M.I. (2019). Bayesian Reconstruction of Axial Dose Maps Using the Measurements of a Novel Detection System for Verification of Advanced Radiotherapy Treatments. In: García-Ramos, JE., Andrés, M., Valera, J., Moro, A., Pérez-Bernal, F. (eds) Basic Concepts in Nuclear Physics: Theory, Experiments and Applications. RÁBIDA 2018. Springer Proceedings in Physics, vol 225. Springer, Cham. https://doi.org/10.1007/978-3-030-22204-8_7

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