S2930
RTT- RTT operational practice and workflow innovations
ESTRO 2026
usability, visualisation and satisfaction with suggestions for improvement or further comments.
physicist) jointly decided to apply online plan adaptation if necessary. Median treatment delivery time for the MRI-guided workflow was 16 minutes — shorter than the 17 minutes in CBCT workflow, despite being delivered in breath-hold. Furthermore, treatment times on the CBCT-linac varied considerably (SD 7:20 min), while MRI-guided treatments were more consistent across patients (SD 4:30 min). Conclusion: Daily MRI guided RTT-only workflow for pancreatic cancer is feasible and efficient. Superior soft-tissue visualization and real-time gating reduced margins with lower expected toxicity, while keeping treatment time short and precision high. The option to scale up to adaptive delivery if necessary added more flexibility for challenging anatomies. This workflow demonstrates that RTTs can safely take a leading role in delivering complex MRI-guided treatments. Keywords: pancreas, RTT only, MRI An audit of using lights instead of auditory cues for achieving voluntary deep-inspiration breath hold in patients undergoing breast radiotherapy Brooke Holson, Jillian Kennard, Esha Patel, Mollie Yates Radiotherapy, The Royal Marsden, Surrey, United Kingdom Purpose/Objective: The standard practice for voluntary deep-inspiration breath hold (vDIBH) is to verbally instruct patients to perform breath hold.The objective of the audit was to determine whether the use of visual cues (coloured lights) would be a viable alternative to include patients unable to follow verbal instructions.The project aimed to compare patient and radiographer experience to establish whether visual cues were a successful A total of 60 patients requiring vDIBH for breast radiotherapy were recruited concurrently into the study. The control group (n=30) were scanned and treated as per standard practice with auditory cues. The study group (n=30) were scanned and treated using a visual prompt to achieve breath hold: red light indicated normal breathing, and green light signalled breath hold.Surveys produced in house, were given to each patient following Radiotherapy planning and after one treatment to determine patient satisfaction. Radiographers were also given a similar survey.The survey comprised three questions (image 1) for patients and four for radiographers to ascertain the Digital Poster 3088 alternative option. Material/Methods:
Results: 29/30 patients were scanned successfully using visual cues. 1 patient was unable to follow the instructions in comparison 30/30 patients were scanned using verbal instructions.As the results tables demonstrate, Patient satisfaction, compliance and understanding for both verbal and visual prompting for breath hold were comparable.Similarly, radiographer feedback suggested that the lights were easy to explain and visualise. In comparison additional verbal support was given to patients in the control group to assist breath hold. This would not be feasible for patients using light cues, which may have had an impact on radiographer overall satisfaction. Additional feedback comments by both radiographer and patients identify difficulties in correcting for under or over breathing in the study group (image 2).
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