Articles

Prof Paul KeallApril 15, 2026

Dose Calculation for Adaptive Radiation Therapy Replan Decisions

Context The NRG Oncology Adaptive Radiation Therapy (ART) review1 determined that ART is justified if any one of three conditions are met: (1)  the maximum dose of any dose limiting organ at risk is exceeded, (2) the prescription isodose volume coverage of any clinical target volume (CTV) is less than 85%, or (3) a significant improvement in CTV coverage can be achieved as the result of a favourable shift in anatomy. Following these guidelines requires the need to include an evaluation of dose in the ART replan decision process.