ESTRO 2024 - Abstract Book

S5927

RTT - Service evaluation, quality assurance and risk management

ESTRO 2024

Results from the analysis of time consumption of the adaptive workflow are shown in Table 1. The oART session could be divided into two categories; the adaptive workflow and patient management. Overall, 37% of the time in the adaptive workflow was spent on patient management and treatment ( Preparing the patient for treatment, Treatment and Patient leaving the treatment room ), while the remaining time was spent on the adaptive workflow ( Influencer review, Target review and Plan review and QA ).The median (IQR) overall time consumption of an oART-treatment was 42.2 min [38.0;47.5], which was significantly greater than the allocated timeslot of 40 min (p<0.001). The median (IQR) time spent on Influencer Review before and after the optimization was 5.5 min [4.3;7.2] and 3.8 min [2.9;5.0] (p<0.001), respectively. For patients with and without pathological lymph nodes, the median (IQR) Target review duration was 11.2 min [9.3;13.5] and 11.5 min [9.3;14.8] (p=0.197), respectively. The median (IQR) for Plan review and QA durations for patients with and without pathological lymph nodes were 8.2 min [7.2;9.3] and 7.5 min [6.9;8.1] (p<0.001), respectively.

Conclusion:

Optimizing the influencer review process, by e.g. reduction of time spent on structures further away from targets, as well as optimizing e.g. the use of rigid propagation and dividing target structures up into several sub-structures for patients with pathological lymph nodes, were identified as possible options for optimization of the oART-workflow. However, further studies are required to determine the most effective optimizations possible for the different time factors included in this study.

Keywords: RTT, time registration