ESTRO 2025 - Abstract Book

S3261

Physics - Intra-fraction motion management and real-time adaptive radiotherapy

ESTRO 2025

Conclusion: This study demonstrated that Image-Guided Radiation Therapy and Surface Guided Radiation Therapy achieved comparable patient positioning within the treatment tolerances. SGRT offers an effective alternative for patient positioning and intra-fraction monitoring, providing the added benefits of reduced radiation exposure and shorter overall treatment times. Moreover, SGRT proves to be an efficient technique that minimizes daily positioning errors, thereby ensuring more accurate delivery of therapy.

Keywords: SGRT, IGRT, Intra-fraction motion management.

References: 1. P. Freislederer, V. Batista, M. Ollers, M. Buschmann, E. Steiner, M. Kugele, F. Fracchiolla, S. Corradini, M. De Smet, F. Moura, S. Perryck, F. Dionisi, D. Nguyen, C. Bert, J. Lehmann. ESTRO-ACROP guideline on surface guided radiation therapy. https://doi.org/10.1016/j.radonc.2022.05.026. 2. Alan M Kalet, Aileen Kim, Daniel S Hippe, Simon S Lo, Christine Fang, Juergen Meyer, Elvira V Lang, Nina A Mayr. The dosimetric benefit of in-advance respiratory training for deep inspiration breath holding is realized during daily treatment in left breast radiotherapy: A comparative retrospective study of serial surface motion tracking. DOI:10.1111/1754-9485.13181.

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Proffered Paper Cardiorespiratory motion and its dosimetric impact on stereotactic arrhythmia radioablation (STAR): A STOPSTORM.eu consortium study Luuk H.G. van der Pol 1 , Stefano Mandija 1 , Brian V. Balgobind 2 , Judit Boda-Heggemann 3 , Melanie Grehn 4 , Lucía Cortés 5 , Jakub Cvek 6 , Pavel Dvorak 6 , Colien Hazelaar 7 , Stefan Jaschik 8 , Lukáš Knybel 6 , Marcin Miszczyk 9 , Mateusz Sajdok 10 , Jorrit Visser 2 , Oliver Blanck 4 , Bartłomiej Tomasik 11 , Martin F. Fast 1 1 Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands. 2 Radiation Oncology, Amsterdam UMC,