Evaluation of the complexity of treatment plans from a national IMRT/VMAT audit – Towards a plan complexity score

Purpose This work aimed to characterize and compare the complexity of the plans created in the context of a national IMRT/VMAT audit. A plan complexity score is proposed to summarize all the evaluated complexity features. Materials and methods Nine complexity metrics have been computed for the audit plans, evaluating different complexity aspects. An approach based on Principal Component Analysis was followed to explore the correlation between...