Articles with "linac" as a keyword



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3D star shot analysis using MAGAT gel dosimeter for integrated imaging and radiation isocenter verification of MR‐Linac system

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Published in 2022 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13615

Abstract: Abstract Purpose This study aims to investigate a star shot analysis using a three‐dimensional (3D) gel dosimeter for the imaging and radiation isocenter verification of a magnetic resonance linear accelerator (MR‐Linac). Methods A mixture of… read more here.

Keywords: star shot; linac; analysis; magat gel ... See more keywords
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Determining the quality control frequency of an MR-linac using risk matrix (RM) analysis.

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Published in 2023 at "Journal of applied clinical medical physics"

DOI: 10.1002/acm2.13984

Abstract: PURPOSE Quality control (QC) is performed routinely through professional guidelines. However, the recommended QC frequency may not be optimal among different institutional settings. Here we propose a novel method for determining the optimal QC frequency… read more here.

Keywords: using risk; quality control; frequency; linac ... See more keywords
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Relative dosimetry with an MR‐linac: Response of ion chambers, diamond, and diode detectors for off‐axis, depth dose, and output factor measurements

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Published in 2018 at "Medical Physics"

DOI: 10.1002/mp.12699

Abstract: PURPOSE The purpose of this study was to acquire beam data for an MR-linac, with and without a 1.5 T magnetic field, by using a variety of commercially available detectors to assess their relative response in… read more here.

Keywords: linac; field; output factor; magnetic field ... See more keywords
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Investigating the impact of patient arm position in an MR-linac on liver SBRT treatment plans.

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Published in 2019 at "Medical physics"

DOI: 10.1002/mp.13826

Abstract: PURPOSE The superior soft-tissue contrast offered by the integrated magnetic resonance imaging (MRI) of the Unity MR-linac compared to the x-ray based image guidance on conventional linacs potentially allows for liver stereotactic body radiation therapy… read more here.

Keywords: linac; right arm; treatment plans; position ... See more keywords
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Dosimetric feasibility of brain stereotactic radiosurgery with a 0.35 T MRI-guided linac and comparison versus a C-arm mounted linac.

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Published in 2020 at "Medical physics"

DOI: 10.1002/mp.14503

Abstract: PURPOSE MRI is the gold-standard imaging modality for brain tumor diagnosis and delineation. The purpose of this work was to investigate the feasibility of performing brain stereotactic radiosurgery (SRS) with a 0.35 T MRI-guided linear… read more here.

Keywords: linac; volume; target; cm3 ... See more keywords
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Medical X-band linear accelerator for high-precision radiotherapy.

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Published in 2021 at "Medical physics"

DOI: 10.1002/mp.15077

Abstract: PURPOSE Recently, high-precision radiotherapy systems have been developed by integrating computerized tomography or magnetic resonance imaging to enhance the precision of radiotherapy. For integration with additional imaging systems in a limited space, miniaturization and weight… read more here.

Keywords: linac; band; precision radiotherapy; beam ... See more keywords
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Electron Ultra-High Dose Rate FLASH irradiation Study Using a Clinical Linac: Linac Modification, Dosimetry and Radiobiological outcome.

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Published in 2022 at "Medical physics"

DOI: 10.1002/mp.15920

Abstract: PURPOSE Ultra-high dose rate FLASH irradiation (FLASH-IR) has been shown to cause less normal tissue damage compared with conventional irradiation (CONV-IR), this is known as the "FLASH effect". It has attracted immense research interest because… read more here.

Keywords: ultra high; dose rate; dose; linac ... See more keywords
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[I091] Clinical deployment of the mridian linac

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Published in 2018 at "Physica Medica"

DOI: 10.1016/j.ejmp.2018.06.163

Abstract: Purpose The introduction of MR-guided radiotherapy (MRgRT) into clinical practice opens a lot of new possibilities and at the same time presents novel challenges. Funded by the German Research Foundation, a Viewray MRIdian Linac was… read more here.

Keywords: linac; treatment; step; clinical deployment ... See more keywords
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Development of a neutron source for imaging at the electron linac facility in Kyoto University Research Reactor Institute

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Published in 2018 at "Physica B: Condensed Matter"

DOI: 10.1016/j.physb.2018.06.009

Abstract: Abstract The Kyoto University electron linac, KURRI-LINAC, has been used for executing a project to develop methodology for the integrity evaluation of nuclear fuels, named the N-DeMAIN (Development of Non-Destructive Methods Adapted for Integrity test… read more here.

Keywords: linac; electron linac; electron; kyoto university ... See more keywords
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Modern LINAC-based radiotherapy is safe and effective in the treatment of secretory and non-secretory pituitary adenomas.

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Published in 2021 at "World neurosurgery"

DOI: 10.1016/j.wneu.2021.12.087

Abstract: OBJECTIVE Adjuvant radiotherapy (RT) can help achieve local tumor control (LC) and reduce hormonal overexpression for pituitary adenomas (PAs). Prior reports involved Gamma Knife or older LINAC techniques. We report on long-term outcomes for modern… read more here.

Keywords: linac; secretory; non secretory; safe effective ... See more keywords
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Characterization of the a-Si EPID in the unity MR-linac for dosimetric applications.

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Published in 2018 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/aa9dbf

Abstract: Electronic portal imaging devices (EPIDs) are frequently used in external beam radiation therapy for dose verification purposes. The aim of this study was to investigate the dose-response characteristics of the EPID in the Unity MR-linac… read more here.

Keywords: linac; epid unity; unity linac; dosimetric applications ... See more keywords