ESTRO 2024 - Abstract Book

S5907

RTT - Service evaluation, quality assurance and risk management

ESTRO 2024

Figure 1: In five cases the more than 2 cm 3 of the rectum received a dose higher than 35 Gy. This was the only planning goal that was not met during treatment.

Conclusion:

In the initial group of patients treated with UHF radiotherapy for prostate cancer, the delivered radiation dose closely matched the planned dose based on CBCT dose accumulation for all five fractions. This suggests that the treatment planning and delivery process was effective in ensuring that the intended radiation dose was delivered to the prostate. However, in 5 out of the 25 patients, the delivered dose to the rectum exceeded one high dose planning goal. This finding highlights the importance of closely monitoring and managing rectal filling during prostate radiotherapy.

Keywords: prostate, organ at risk, evaluation