End-to-end quality assurance for stereotactic radiotherapy with Fricke-Xylenol orange-Gelatin gel dosimeter and dual-wavelength cone-beam optical CT readout.

Alice Rousseau,Christel Stien,Jean Gouriou,Jean-Marc Bordy,Guillaume Boissonnat, Isabelle Chabert,Stéphane Dufreneix,Valentin Blideanu

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)（2023）

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摘要

This study presents the successful implementation of 3D E2E QA tests for stereotactic radiotherapy with FXG gel dosimetry and a dual-wavelength reading method on an optical CT scanner. This dosimetric method provides 3D absolute dose distributions in the 0.25 - 10 Gy dose range with a high spatial resolution and a dose uncertainty of around 2 % (k=1).

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关键词

3D dosimetry,Fricke-based gel dosimetry,Optical CT scanner,Stereotactic radiotherapy

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