ESTRO 2025 - Abstract Book

S4126

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

ESTRO 2025

Time was recorded for 261 ROIs, with 208 related to pre-treatment preparation and 53 on treatment unit adjustments. The breast region was the most frequently involved in pre-treatment preparation, while the extremities accounted for the fewest (Table 1). Pre-treatment SGRT preparation takes on average 249 seconds (4 min 9sec). The preparation of the dual workflow for DIBH breast region takes the longest time (558 sec – min. 240/ max. 1680 seconds) while head regions with open face masks take the least amount of time (190 sec – min. 60/ max. 480 seconds). For the 53 on treatment unit adjustments, the averaged time modifying the ROIs was 184 seconds (3 min 4 sec). Of these 53 ROIs, 13 patients (25%) came for their first fraction. Out of the total of 208 SGRT pre treatment preparations, around 6% had to be adjusted on treatment unit before their first fraction. On treatment unit adjustments mostly occurred in the breast regions. Demonstrated in Figure 1 are the main reasons why the ROI was adjusted. The most common being a too narrowly drawn ROI. Conclusion: Pre-treatment, the mean time was 249 sec per ROI. The drawing of the breast regions DIBH took the longest. During treatment, the mean time necessary for adjustments was 184 seconds per ROI. The thoracic region took up the most time. The breast region was the most adjusted anatomical region. The main reason for on-treatment adjustment, was a too narrowly drawn ROI.

Keywords: Time-allocation, SGRT-preparation, ROI

3483

Digital Poster Clinical Implementation of Hypnotic Communication in Radiotherapy: An Interdisciplinary Experience at EOC-IOSI Stefano Leva 1 , Michela Frapolli 1 , Paula Sargenti 1 , Enrica Fasani 1 , Annalisa Cassarino 1 , Cavicchiolo Rossella 1 , Parolini Patrizia 1,2 , Da Silva Alves Alessia 1 , Pesce Gianfranco Angelo 1 , Thomas Zilli 1,3 1 Radiation Oncology Clinic, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland. 2 Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Manno, Switzerland. 3 Facoltà di Scienze Biomediche, Università della Svizzera Italiana, Bellinzona, Switzerland

Purpose/Objective: Radiation therapy is a critical component of cancer treatment but often induces significant anxiety and distress in