ESTRO 2024 - Abstract Book

S3471

Physics - Dose prediction, optimisation and applications of photon and electron planning

ESTRO 2024

Results:

OAR dose statistics were extracted for 186 patients planned with the CAA dose limiting objective between April and October 2023 (cohort 2), and for 927 patients planned without the CAA dose limiting objective between February 2022 and March 2023 (cohort1). Figure 1 shows an example dose distribution from a patient planned without the CAA maximum dose objective, and for the same patient planned with the CAA maximum dose objective.

Figure 1: Example isodose distributions for same patient planned without CAA sparing (top) and with CAA sparing (bottom). The CAA contour is shown in red.

Figure 2 shows histograms for each dose statistic comparing patients planned with and without the CAA maximum dose limiting optimisation objective.