ArticleMedical physics2020
Scintillation imaging as a high-resolution, remote, versatile 2D detection system for MR-linac quality assurance.
Article in Medical physics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Assessment of scintillation and Cherenkov imaging as beam shape verification method in CyberKnife® radiotherapy.Journal of applied clinical medical physics · 2024Article
- Development of a three-dimensional scintillation detector for pencil beam verification in proton therapy patient-specific quality assurance.Medical physics · 2024Article
- Radioluminescence imaging feasibility for robotic radiosurgery field size quality assurance.Medical physics · 2022Article
- Visual Isocenter Position Enhanced Review (VIPER): a Cherenkov imaging-based solution for MR-linac daily QA.Medical physics · 2021Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
purposeTo demonstrate the potential benefits of remote camera-based scintillation imaging for routine quality assurance (QA) measurements for magnetic resonance guided radiotherapy (MRgRT) linear accelerators.
methodsA wall-mounted CMOS camera with a time-synchronized intensifier was used to image photons produced from a scintillation screen in response to dose deposition from a 6 MV FFF x-ray beam produced by a 0.35 T MR-linac. The oblique angle of the field of view was corrected using a projective transform from a checkerboard calibration target. Output sensitivity and constancy was measured using the scintillator and benchmarked against an A28 ion chamber. Field cross-plane and in-plane profiles were measured for field sizes ranging from 1.68 × 1.66 cm
resultsThe scintillation imaging system showed comparable sensitivity and linearity to the ion chamber in response to changes in machine output down to 0.5 MU (R
conclusionsRemote scintillation imaging of a two-dimensional screen provided a rapid, versatile, MR-compatible solution to many routine quality assurance procedures including output constancy, profile flatness and symmetry constancy, MLC position verification and isocenter size. This method is high-resolution, does not require post-irradiation readout, and provides simple, instantaneous data acquisition. Full automation of the readout and processing could make this a very simple but effective QA tool, and is adaptable to all medical accelerators.
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Registered trials
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