ESTRO 2025 - Abstract Book

S4068

RTT - Patient care, preparation, immobilisation and IGRT verification protocols

ESTRO 2025

Conclusion: Constant evaluation of protocol is important to ensure optimisation of patient's workflow. The established threshold for acceptable skin contour variations has successfully reduced re-setups. Concurrently, it does not compromise the overall planned dosimetry and intended clinical outcomes. Ultimately, the updated protocol has proven to improve patients’ treatment processes, resource and workflow efficiencies.

Keywords: proton, resetup, head-and-neck

References: Sin, S. Y., Chen, S., Lee, K. M., & Chua, M. L. K. (2023). Clinical Review on Head and Neck CBCT Images. International Journal of Radiation Oncology, Biology, Physics, 117(2), e719–e719. https://doi.org/10.1016/j.ijrobp.2023.06.2225 Sin, S. Y., Chen, S., & Sommat, K. (2024). Initial Experience With Head And Neck Proton Patients Positioning And The Contributing Factors For Re-Setup. International Journal of Particle Therapy, 12, 100490-. https://doi.org/10.1016/j.ijpt.2024.100490 The Netherlands Cancer Institute. (2022). XVI Protocols: Netherlands Cancer Institute The Netherlands. https://www.avl.nl/media/5526/xvi-engelse-protocols-2022.pdf