ArticleJournal of applied clinical medical physics2025
A multi-institution performance assessment of a double-layer MLC.
Article in Journal of applied clinical medical physics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The trial behind it
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Who cites it
1 citing paper in PubMed.
- A multi-institution performance assessment of a double-layer MLC.Journal of applied clinical medical physics · 2025Article
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Authors and funding
9 authors.
Funding
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Abstract
backgroundVarian Halcyon and Ethos linacs use a novel double-layer MLC. PURPOSE: To perform a multi-institutional characterization of MLC performance of Varian Halcyon and Ethos linacs and establish the range of typical performance indices.
methodsThe tests used plans delivered to the megavoltage (MV) imaging panel that can be easily implemented and reproducibly delivered in different centers. Automated image analysis was used to obtain metrics that characterize the MLC performance. The tests included picket fence, MLC leakage, sweeping gap, open field symmetry changes, change of output with gantry angle, and volumetric modulated arc therapy (VMAT) indices. Sixteen linacs from 11 centers were included in the study.
resultsPerformance indices were found that are in line with other linacs, with the exception of proximal layer positional calibration.
conclusionsTypical ranges have been established for Halcyon/Ethos MLC performance indices.
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