ESTRO 2025 - Abstract Book

S2215

Interdisciplinary – Global health

ESTRO 2025

Figure 3 Conclusion:

Our analysis demonstrates that ultrahypofractionation can greatly increase access to radiotherapy and yield increased return on investments globally. The reduced cost and delivery times can allow countries to reduce shortfall in radiotherapy access.

Keywords: Ultrahypofractionation, breast cancer, RT demand

References: 1. Murray Brunt A et al. 2020 FAST-Forward Trial Management Group. Hypofractionated breast radiotherapy for 1 week versus 3 weeks (FAST-Forward): 5-year efficacy and late normal tissue effects results from a multicentre, non inferiority, randomised, phase 3 trial. 2. Bray F et al. 2024 Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. 3. CCORE. Review of optimal radiotherapy utilisation rates; 2013. 4. Azizah AM et al. 2019 Malaysia national cancer registry report 2012–2016. Putrajaya, Malaysia: National Cancer Registry Department 5. International Atomic Energy Agency Division of Human Services: Directory of Radiotherapy Centres (DIRAC). https://dirac.iaea.org/ Digital Poster how much (land does a man need) data storage does radiotherapy need? Ahmed Ifthaker 1 , Luke Eggerton 2 , Niall MacDougall 1 1 Radiotherapy Physics, Barts Health NHS Trust, London, United Kingdom. 2 Radiotherapy, Barts Health NHS Trust, London, United Kingdom Purpose/Objective: Global healthcare is producing more and more data every year, which in turn creates an increasing carbon footprint. Radiotherapy is no exception, with data increased from being storable in local hard drives in gigabytes to terabytes in multiple servers and clouds. Purpose of this work was to quantify the increasing amount of data storage per patient in the last ten years at Bart’s radiotherapy department. Material/Methods: Ten years of patient data produced from external beam radiotherapy treatment (EBRT) using Varian linacs has been analysed and compared with predicted data storage based on previous data trend. Total data produced over ten years was also compared with number of patients and fractions delivered. Duplicated data from other sources has not been considered for this study. Results: Our data shows total number of patients per year receiving treatment is increasing but the numbers of fractions are decreasing (due SABR and hypofractionated treatment). Average fractions per patient have reduced from 14.7 in 2014 to 11.5 in 2023. However, the data storage required per patient has increased from 74MB to 242MB in 2023. 807