Abstract
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] Babic S. et al. Three-dimensional dose verification for IMRT in the Radiological Physics Centre head-and-neck phantom using optical CT scans of Ferrous Xylenol-Orange gel dosimeters. Int J Radiat Oncol Biol Phys. 2008; 70: 1281-1291 Abstract Full Text Full Text PDF PubMed Scopus (59) Google Scholar . Thus, we investigated the feasibility of gel dosimetry in combination with a patient-based 3D printed phantom for personalized PSQA.
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