Open AccessPolymer gel dosimetry in the presence of a strong magnetic field
Author(s) -
Y. Roed,
L. Pinsky,
Geoffrey S. Ibbott
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1305/1/012014
Subject(s) - image guided radiation therapy , dosimeter , quality assurance , materials science , polymer , imaging phantom , dosimetry , magnetic resonance imaging , methacrylic acid , radiation therapy , medical physics , biomedical engineering , nuclear medicine , medicine , radiology , copolymer , composite material , external quality assessment , pathology
The integration of magnetic resonance (MR) imagers with radiotherapy units provided a new opportunity to demonstrate the value of polymer gels as volumetric dosimeters. The purpose of this work was to investigate the use of methacrylic-acid based polymer gels for quality assurance of patient-specific treatment plans delivered with these novel treatment machines. The characterization of the gel was performed while the gel was subjected to a strong magnetic field and in the absence of the magnetic field. Additionally, an end-to-end phantom study was conducted using an MR image-guided radiotherapy (MR-IGRT) unit. This data will be used to support the implementation of volumetric dosimeters in MR-IGRT.