17 Portal dosimetry prediction using collapsed-cone convolution model for clinical quality assurance applications

Introduction.Quality assurance (QA) of a volumetric modulated arc therapy (VMAT) plan can be performed using an amorphous silicon electronical portal imaging devices (EPIDs) to improve the QA efficiency. In our clinical routine, dosimetric plannifications are calculated with clinical treatment planning system (TPS) Pinnacle (Philips Medical Systems, Madison, WI) and transferred to Eclipse (Varian Medical Systems, Palo Alto, CA). Then a 3D recalculation is required in order to use the portal dose image prediction (PDIP) algorithm, which extends the files preparation time.
Source: Physica Medica: European Journal of Medical Physics - Category: General Medicine Authors: Source Type: research