ArticleDiagnostics (Basel, Switzerland)2024
Evaluating the Efficacy of Machine Performance Checks as an Alternative to Winston-Lutz Quality Assurance Testing in the TrueBeam Linear Accelerator with HyperArc.
Article in Diagnostics (Basel, Switzerland), 2024. 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.
- Quantifying gantry rotation speed and gating effects on CBCT isocenter accuracy for radiotherapy image acquisition.Physics and imaging in radiation oncology · 2026Article
- Evaluation of the TrueBeam machine-performance-check (MPC): Collimator device check (CDC).Journal of applied clinical medical physics · 2025Article
- Five-year evaluation of linear accelerator-based SRS platform isocentricity.Journal of applied clinical medical physics · 2025Article
- Feasibility of Using Machine Performance Check-enhanced Couch Check as a Daily Surrogate for Multisphere Winston-Lutz Testing in Single-isocenter Multitarget Stereotactic Radiosurgery.Journal of medical physicsArticle
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Authors and funding
7 authors.
Funding
Abstract
HyperArc is a preferred technique for treating brain metastases, employing a single isocenter for multiple lesions. Geometrical isocentricity in the TrueBeam linear accelerator with HyperArc is crucial. We evaluated machine performance checks (MPCs) as an alternative to the Winston-Lutz (WL) test to verify the treatment isocenter. Between January and July 2023, we assessed 53 data points using MPC and Winston-Lutz tests. The isocenter size obtained from the MPC and its sum, including the rotation-induced couch shift, were compared with the maximum total delta value from the Winston-Lutz test. The maximum total delta was 0.68 ± 0.10 mm, while the isocenter size was 0.28 ± 0.02 mm. The sum of the isocenter size and rotation-induced couch shift measured by MPC was 0.61 ± 0.03 mm. During the Winston-Lutz test (without couch rotation), the maximum total delta value was 0.56 ± 0.13 mm. A
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