Decision making in external beam radiation therapy based on fuzzy cognitive maps

This work introduces the use of the soft computing technique of Fuzzy Cognitive Maps to model the decision-making process of radiation therapy and develop an advanced system to estimate the delivered dose to the target volume. During radiotherapy planning numerous factors are taking into consideration that increase the complexity of the decision-making problem. The modeling methodology of FCM has the ability to integrate and consider different, discipline and conflicting factors to determine the dose. A Fuzzy Cognitive Map Model is developed, that can handle imprecise and uncertain information and is used as the decision-making model determining the radiation dose and the complex radiation therapy system. The proposed FCM model is implemented for a practical radiotherapy treatment planning case of gynecological cancer.