ESTRO 2024 - Abstract Book

S3444

Physics - Dose calculation algorithms

ESTRO 2024

Conclusion:

This study reveals that even though doses from imaging or secondary radiation sources are notably lower than therapeutic doses, their percentage contribution to the dose received by OARs cannot be disregarded. For patients anticipating an extended post-treatment survival, like Lymphoma patients, these doses may increase the risk of secondary cancer development. Consequently, it is essential to optimise the imaging proccess and incorporate the contribution of low-dose sources into the treatment planning system to enhance patient safety and minimize long term risks.

Acknowledgements

This Project (SINFONIA) has received funding from the Euratom research and training programme: 2019-2020 under grant agreement No. 945196.

Keywords: CBCT, Out-of-field dose, lymphoma

References:

[1] T Marchant, K Joshi. Journal of Radiological Protection, 37 p13-30 (2017) (DOI: 10.1088/1361- 6498/37/1/13)

[2] Sánchez-Nieto, Beatriz, et al. "Analytical model for photon peripheral dose estimation in radiotherapy treatments." Biomedical Physics & Engineering Express 1.4 (2015): 045205.

[3] Ding, Aiping, et al. "VirtualDose: a software for reporting organ doses from CT for adult and pediatric patients." Physics in Medicine & Biology 60.14 (2015): 5601.