Figure 4.

Rectal gBEUD for HDR interstitial brachytherapy boosts as a function of gBEUD threshold, ${\text{BED}}_{\text{sat}}^{\text{gBEUD}}$, relative to prescribed BED. The choice of a=16.7 corresponds to ≥g3 rectal bleeding. No additional EFEB dose is assumed for this analysis. Each line corresponds to a patient.