RADBIOMOD: A simple program for utilising biological modelling in radiotherapy plan evaluation
Related Experiment Video
Updated: Mar 30, 2026
Author Spotlight: Improving Radiation Therapy Access with Radiation Planning Assistant
Published on: October 6, 2023
Joe H Chang1, Christopher Gehrke2, Ramachandran Prabhakar2
1Radiation Oncology Centre, Austin Health, Heidelberg, Victoria, Australia; Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; University of Melbourne, Victoria, Australia.
Purpose:
Radiotherapy plan evaluation is currently performed by assessing physical parameters, which has many limitations. Biological modelling can potentially allow plan evaluation that is more reflective of clinical outcomes, however further research is required into this field before it can be used clinically.
Methods:
A simple program, RADBIOMOD, has been developed using Visual Basic for Applications (VBA) for Microsoft Excel that incorporates multiple different biological models for radiotherapy plan evaluation, including modified Poisson tumour control probability (TCP), modified Zaider-Minerbo TCP, Lyman-Kutcher-Burman normal tissue complication probability (NTCP), equivalent uniform dose (EUD), EUD-based TCP, EUD-based NTCP, and uncomplicated tumour control probability (UTCP). RADBIOMOD was compared to existing biological modelling calculators for 15 sample cases.
Results:
Comparing RADBIOMOD to the existing biological modelling calculators, all models tested had mean absolute errors and root mean square errors less than 1%.
Conclusions:
RADBIOMOD produces results that are non-significantly different from existing biological modelling calculators for the models tested. It is hoped that this freely available, user-friendly program will aid future research into biological modelling.
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