ESTRO 2025 - Abstract Book

S2237

Interdisciplinary – Global health

ESTRO 2025

Fig. 1 – Likert chart on familiarity and sensitivity about carbon footprint

Conclusion: This study represents an initial attempt to explore the environmental impact of proton therapy from the patient perspective. Findings indicate that substantial distances traveled and frequent reliance on personal vehicles contribute significantly to the carbon footprint associated with proton therapy. Although patient awareness of the carbon footprint is limited, the feedback highlights opportunities for improvement, such as promoting sustainable transportation options and restructuring treatment schedules, adopting hypofractionation when feasible, to reduce travel needs.

Keywords: carbon footprint, proton therapy, travel

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Digital Poster Prevalence and trends in sarcoma abstracts at annual ESTRO congresses Elizabeth A Barnes 1 , Paula Tur 2 , Beate Timmermann 3

1 Radiation Oncology, Odette Cancer Centre, Toronto, Canada. 2 Student, Newcastle University, Newcastle upon Tyne, United Kingdom. 3 Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Germany, German Cancer Consortium (DKTK), Essen, Germany Purpose/Objective: Sarcomas are regarded as rare and diverse types of malignancies broadly divided into soft tissue and bone primaries. Sarcomas have varying survival rates and prognosis ranging from borderline benign to highly aggressive and difficult to treat. Research in sarcoma has historically been lacking in the oncology literature, specifically in