3D printed phantom development and first approach for verification of individual dose in radiotherapy

Abstract

Introduction. In radiotherapy treatment high accuracy and precision is needed. The errors indicated of the limits and deficiencies of the algorithms using in treatment planning systems may initiate significant errors in dose calculation. Nowadays 3D printed technologies enable to create specific individual phantom to provide dosimetry in heterogeneous environments that physically resemble different densities tissues in human body and also artefacts (metallic implants). In order to verify dose matching and human body and also artefacts (metallic implants). In order to verify dose matching and minimize possible errors theoretically calculated patient doses using treatment planning system (TPS) are comparing with experimentally measured radiotion treatment doses adapting the same parameters. The aim. The main aim of this work is to evaluate different types of 3D printed materials, compare their dosimetric characteristics with real human body tissues and artefacts inside and select the best technique which a suitable to use for individualized patient's treatment plan dosimetry in radiotherapy. Materials and methods. 3D printed phantom has to be manufactured from nearly equivalent materials of human body which mimic the densities of soft tissues, lung, air cavities and bones. [...].