ESTRO 2022 - Abstract Book

S1654

Abstract book

ESTRO 2022

Conclusion The dose optimised CBCT protocols developed at Weston Park Cancer Centre provide images that are of suitable quality for their intended clinical purpose, and can safely be rolled out into clinical practice.

References 1. Wood, T., Moore, C., Horsfield, C., Saunderson, J., & Beavis, A. (2015).

Accounting for patient size in the optimization of dose and image quality of pelvis cone beam CT protocols on the Varian OBI system. British Journal of Radiology , 88 (1055).

2. Langmack, K. A., Newton, L. A., Jordan, S., & Smith, R. (2016). Cone beam CT dose reduction in prostate radiotherapy using Likert scale methods. The British Journal of Radiology, 89 (1059), 20150460. doi:10.1259/bjr.20150460

PO-1866 10-minute treatment appointments. RTT's initial perceptions of treating on a Varian Halcyon™.

S. Ruane 1 , T. Rees 1 , S. Varghese 1 , E. Olawale 1 , L. Drummond 1

1 Oxford University Hospitals NHS Foundation Trust, Radiotherapy, Oxford, United Kingdom

Purpose or Objective Radiotherapy capacity in the UK is increasingly under pressure due to historic lack of provision, rising incidence of cancer in an aging population and technological developments improving and expanding treatment options. Varian’s Halcyon™ has the potential to increase capacity through accelerated treatment times and improved workflow but is there an impact on patient care and staff satisfaction? Only the 5th Halcyon to go live in the UK, our local institution became the first UK department to adopt a 10-minute appointment time from the start of clinical use, utilising a structured framework to facilitate treating up to 51 patients per day, covering a variety of treatment sites. Prior to working on the Halcyon, RTTs expressed concerns that patient care could deteriorate and staff become overstretched from the rapid throughput. They were also worried that the perceived simplicity of operating the new linac would lead to deskilling of RTTs. To maintain the quality of patient care and staff wellbeing on Halcyon, it was important to look at these concerns. Materials and Methods A questionnaire was used to ascertain RTTs’ confidence levels in maintaining patient care, managing workflow and their own skill levels before having their training on Halcyon. They were also asked to indicate which feelings or descriptions they felt were relevant. The same questions were then asked at the end of a single day’s experience. This looked to understand their perceptions of starting to treat patients on Halcyon and how these views changed with experience.

A timing audit facilitated understanding of linac workflow. Consideration was made for patients who had severe mobility issues, pacemakers or other significant needs. The numbers of patients treated each day on all linacs in the department were reviewed in the run up to full capacity on Halcyon to understand implications of integrating new equipment but also to quantify the impact on capacity in a busy department.

Results