ESTRO 2023 - Abstract Book

S1248

Digital Posters

ESTRO 2023

Conclusion This is the first study to explore acute AE trajectories for PCa patients receiving online MRgRT. A clinically relevant increase in urinary frequency was found for one-fifth of patients. The mean changes in AEs for the two cohorts peaked at different time points. Twelve weeks after MRgRT, increased urinary frequency and rectal pain persisted as the most common symptom for the 60 Gy and 36 Gy cohort, respectively. One-third of the patients reported additional symptoms potentially