Performance of a cylindrical diode array for use in a 1.5 T MR-linac

Physics in Medicine and Biology
A C HouwelingB W Raaymakers

Abstract

At the UMC Utrecht, a linear accelerator with integrated magnetic resonance imaging (MRI) has been developed, the MR-linac. Patient-specific quality assurance (QA) of treatment plans for MRI-based image guided radiotherapy requires QA equipment compatible with this 1.5 T magnetic field. The purpose of this study was to examine the performance characteristics of the ArcCHECK-MR in a transverse 1.5 T magnetic field. To this end, the short-term reproducibility, dose linearity, dose rate dependence, field size dependence, dose per pulse dependence and inter-diode dose response variation of the ArcCHECK-MR diode array were evaluated on a conventional linac and on the MR-linac. The ArcCHECK-MR diode array performed well for all tests on both linacs, no significant differences in performance characteristics were observed. Differences in the maximum dose deviations between both linacs were less than 1.5%. Therefore, we conclude that the ArcCHECK-MR can be used in a transverse 1.5 T magnetic field.

References

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May 16, 2012·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)·Guangjun LiQingfeng Jiang
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Jun 17, 2014·Seminars in Radiation Oncology·Paul J KeallUNKNOWN Australian MRI-Linac Program, including contributors from Ingham Institute, Illawarra Cancer Care Centre, Liverpool Hospital
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Citations

Mar 4, 2017·The British Journal of Radiology·Julianne M PollardGeoffrey S Ibbott
Nov 10, 2018·Physics in Medicine and Biology·T J PerikF W Wittkamper
Feb 1, 2018·Physics in Medicine and Biology·Hannah J LeeGeoffrey S Ibbott
Sep 11, 2019·Physics in Medicine and Biology·Brigid A McDonaldGeoffrey S Ibbott
Jan 10, 2020·Medical Physics·Sarah J AlnaghyPeter Metcalfe
Jul 1, 2020·Physics in Medicine and Biology·Anatoly B RozenfeldVladimir Feygelman
Dec 15, 2017·Physics in Medicine and Biology·S J WoodingsB W Raaymakers
Jun 15, 2019·Medical Physics·Iban Torres-XirauAnton Mans
Sep 1, 2017·Nature Biomedical Engineering·Kathrin HeinzmannEric O Aboagye
Jun 27, 2019·Acta Oncologica·Anders S BertelsenUffe Bernchou
May 7, 2020·Radiation Oncology·Christopher KurzMarco Riboldi
Dec 20, 2020·International Journal of Radiation Oncology, Biology, Physics·Brigid A McDonaldUNKNOWN MR-Linac Consortium Head and Neck Tumor Site Group
Dec 16, 2020·Physics in Medicine and Biology·Uffe BernchouCarsten Brink
Feb 15, 2021·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Igor Olaciregui-RuizAnton Mans
Mar 7, 2020·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)·Igor Olaciregui-RuizAnton Mans
Mar 18, 2020·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Iban Torres-XirauAnton Mans
Mar 6, 2021·Journal of Applied Clinical Medical Physics·Vimal DesaiPoonam Yadav
Jun 1, 2021·Journal of Applied Clinical Medical Physics·Kujtim LatifiVladimir Feygelman
Sep 15, 2021·Journal of Applied Clinical Medical Physics·Andreas JägerOtto A Sauer

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