19 Personalized pretreatment QA for intracranial stereotactic treatments using gel dosimetry and 3D printing of phantom: A feasibility study

Introduction.In stereotactic radiotherapy, pretreatment patient-specific quality controls (PSQA) are performed on generic phantoms to check the agreement between the dose calculated by the treatment planning system (TPS) and the measured dose by a point or 2D detector. For those controls, gel dosimetry seems a promising technique as it presents several advantages compared with conventional dosimeters such as 3D absolute dose determination with high spatial resolution 1. Thus, we investigated the feasibility of gel dosimetry in combination with a patient-based 3D printed phantom for personalized PSQA.

Source: Physica Medica: European Journal of Medical Physics - November 30, 2019 Category: General Medicine Authors: J. Colnot, S. Chiavassa, G. Delpon, C. Huet Source Type: research