END-TO-END AUDIT: COMPARISON OF TLD AND LITHIUM FORMATE EPR DOSIMETRY.
Electron Spin Resonance Spectroscopy
/ methods
Formates
/ chemistry
Humans
Image Processing, Computer-Assisted
/ methods
Luminescent Measurements
Neoplasms
/ diagnostic imaging
Phantoms, Imaging
Radiometry
/ methods
Radiotherapy Dosage
Radiotherapy Planning, Computer-Assisted
/ methods
Radiotherapy, Intensity-Modulated
/ methods
Thermoluminescent Dosimetry
/ methods
Tomography, X-Ray Computed
/ methods
Journal
Radiation protection dosimetry
ISSN: 1742-3406
Titre abrégé: Radiat Prot Dosimetry
Pays: England
ID NLM: 8109958
Informations de publication
Date de publication:
31 Dec 2019
31 Dec 2019
Historique:
received:
19
07
2018
revised:
28
11
2018
pubmed:
1
4
2019
medline:
5
8
2020
entrez:
1
4
2019
Statut:
ppublish
Résumé
The aim of this study was to test two different solid state dosimetry systems for the purpose of end-to-end audits of radiotherapy volumetric modulated arc therapy (VMAT) technique; a lithium formate electron paramagnetic resonance system and a lithium fluoride thermoluminescent dosimetry system. As a complement to the solid state systems, ion chamber measurements were performed. A polystyrene phantom with a planning target volume (PTV) and an organ at risk (OAR) structure was scanned using CT. A VMAT dose plan was optimized to deliver 2 Gy to the target volume and to minimize the dose to the OAR. The different detectors were inserted into the phantom and the planned dose distribution was delivered. The measured doses were compared to the treatment planning system (TPS) calculated doses. Good agreement was found between the TPS calculated and the measured doses, well accepted for the dose determinations in remote dosimetry audits of VMAT treatment technique.
Identifiants
pubmed: 30929009
pii: 5424002
doi: 10.1093/rpd/ncy289
doi:
Substances chimiques
Formates
0
formic acid
0YIW783RG1
Types de publication
Comparative Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
119-122Informations de copyright
© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.