ESTRO 2025 - Abstract Book

S4114

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

ESTRO 2025

3196

Digital Poster Development of a customisable site-specific imaging protocol application to guide clinical decision making in radiotherapy. Eric Pei Ping Pang 1,2 , Li Hoon Lim 1 , Sze Yarn Sin 1 , Pei Lu Tan 1 , Muhammad Tarmizi Bin Pawi 1 , Alice Wan Ting Kor 1 , Jeannie Yi Xin Lin 1 , Nurul Tassha Effira Binte Mohamed Anwar 1 , Soon Ann Gan 3 1 Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore. 2 Oncology Academic Clinical Programme, Duke-NUS Graduate Medical School, Singapore, Singapore. 3 Department of Cancer Informatics, National Cancer Centre Singapore, Singapore, Singapore Purpose/Objective: The use of site-specific imaging protocols to guide and standardise clinical decisions are widely implemented in radiotherapy to minimise risk of errors. In busy clinics with high patient volume, radiation therapists are often expected to operate at a fast-paced, time-pressured environment to ensure timely and accurate treatment execution. The development of an application that encompasses all the site-specific imaging protocols aims to facilitate clinical decisions to minimise the risk of human-errors. Material/Methods: Workflows and action-levels with reference to the existing site-specific imaging protocols include brain/head and neck, breast, lung, prostate, gynaecology, cranio-spinal (CSI), palliative, general thorax/ abdomen/ pelvic/ extremity cases. The related paper [1] on head and neck radiotherapy contains a link to the supplementary material that illustrate a typical flow chart for an imaging protocol. More recently, we have adopted a traffic light system as a visual cue to enhance clinical decision making [2]. A graphical user interface (GUI) was designed and developed using python (v3.11) with Tkinter library. The GUI includes a dropdown selections of imaging protocols and users are required to enter the positioning shifts to derive the recommendations using a traffic light system. Imaging protocol tolerances and protocolised recommendation are included in the logic and were validated by independent senior radiation therapists. implementation (Figure 1). A total of 11 site-specific imaging protocols were included in the application with an integrated traffic light recommendation system using coded logics to tailor requirements of each protocol. Dropdown selections of site-specific imaging protocols and corresponding action-levels and recommendations were hard-coded. This self-guided software has the potential to act as a one-stop application to facilitate, guide and cross-check clinical decisions related to the application of site-specific imaging protocols to reduce the risk of human errors because of manual interpretation. It also reduces the risk of applying the wrong imaging protocols especially for multi-sites and sites that staff are less familiar with. Results: A software application with GUI, RadGuideX©, was developed in-house and piloted for future clinical