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.