ESTRO 2024 - Abstract Book

S5865

RTT - Service evaluation, quality assurance and risk management

ESTRO 2024

Belgium has enough RTTs to comply with current law, but the number of RTTs is lower than the ideal number of FTE RTTs, showing that the law does not reflect the current RT practice and technology. The RTTs deficit in 2025 is estimated to be the same or greater than in 2022.

Belgian RTT training is also of major concern as most of the professionals have a nursing education background with a low number holding a postgraduate certificate such as an RT specific training/specialisation.

Staff limitations in terms of quantity and quality may jeopardize the delivery of state-of-the-art and safe RT and restrict the introduction of new technologies. Therefore, new regulations issued by the Ministry of Health and further investments in education and training are of great urgency as this will allow increased staffing levels.

Keywords: Belgian RTT workforce, workforce needs, planning

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Digital Poster

Risk analysis with bow-tie methodology on radiotherapy process: 3 major adverse events analyzed.

Severine Cucchiaro, Philippe Coucke

CHU Liege, Radiotherapy, Liege, Belgium

Purpose/Objective:

Patient safety is a very important topic in health care and more particularly in radiotherapy. To enhance the quality and safety of patient care, it is useful to carry out risk analyses. Indeed, to improve patient safety in radiotherapy, potential critical events should be analyzed for the existence of preventive barriers. The aim of our study is to identify existing and missing barriers using the bow-tie methodology on 3 top events of the radiotherapy process. The objective of this method is to highlight critical paths that do not have sufficient control measures on the 3 major risks which are incorrect patient identification, delivering the wrong dose and treating in the wrong localization.

Material/Methods:

The principle of the bow-tie method is to bring together a fault tree and an event tree centered on the same critical event, often called a “central feared event”. The left part of the bow-tie consists of a defect tree. This allows the identification and analysis of the causes of central events without obstacles to prevention. The right part of the bow tie consists of an event tree which allows it to determine the nature and extent of the consequences of the feared central event in terms of prevention barriers. Its use is generally reserved for events, such as particularly critical ones, for which a high level of risk management is essential. A full bow-tie represents a possible scenario with all treatment pathways and barriers identified. Multidisciplinary team composed by Radiation Oncologists, Radiation TherapisTs (RTTs), physicists and administrative staff with the help of the Quality Manager (QM) conducted the study. The bow tie analysis was performed on the main radiotherapy process, on the 3 major critical events. For each event, potential