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Updated: Oct 28, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Dose accumulation in reirradiation: Key practical considerations
Myriam Ayadi1, Magali Sandt1, Justine Deborne1
1Medical Physics Department, centre Léon-Bérard, Lyon, France.
Abstract:
Reirradiation is a challenge due to both clinical and technical considerations. Dose accumulation corresponds to the summation between previous and current treatment dose distribution and is fundamental to guide clinical decision-making as it helps to estimate cumulative dose to organs of interest and ensure that they comply with institutional or literature-based dose constraints. Performing dose accumulation must rely on a rigorous process, depending on the data available regarding previous irradiation and the tools available in the clinic. In this paper, we present and discuss the different dose accumulation methods, their degree of complexity and potential limitations.
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