ArticleJournal of applied clinical medical physics2023
Optimal threshold of a control parameter for tomotherapy respiratory tracking: A phantom study.
Article in Journal of applied clinical medical physics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Retrospective log-based quality assurance of real-time MLC adaptation on a helical tomotherapy platform.Journal of applied clinical medical physics · 2026Article
- Effect of tumor size on motion tracking and dosimetric accuracy using Radixact Synchrony.Journal of radiation research · 2026Article
- Impact of four-dimensional computed tomography phase number on target coverage of four-dimensional robustly optimized lung stereotactic body radiotherapy.Scientific reports · 2025Article
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- Article
- Dosimetric evaluation in Helical TomoTherapy for lung SBRT using Monte Carlo-based independent dose verification software.Journal of applied clinical medical physics · 2024Article
- Optimal threshold of a control parameter for tomotherapy respiratory tracking: A phantom study.Journal of applied clinical medical physics · 2023Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRadixact Synchrony PURPOSE: This study aims to determine the optimal threshold of the potential difference of Radixact Synchrony
methodsThe relationship among the dosimetric accuracy, motion tracking accuracy, and control parameter was evaluated using a moving platform, a phantom with a basic respiratory model (the fourth power of a sinusoidal wave), and several irregular respiratory model waveforms. The dosimetric accuracy was evaluated by gamma analysis (3%, 1 mm, 10% dose threshold). The tracking accuracy was measured by the distance error of the difference between the tracked and driven positions of the phantom. The largest potential difference for 95% of treatment time was evaluated, and its correlation with the gamma-pass ratio and distance error was investigated. The optimal threshold of the potential difference was determined by receiver operating characteristic (ROC) analysis.
resultsA linear correlation was identified between the potential difference and the gamma-pass ratio (R = -0.704). A linear correlation was also identified between the potential difference and distance error (R = 0.827). However, as the potential difference increased, it tended to underestimate the distance error. The ROC analysis revealed that the appropriate cutoff value of the potential difference was 3.05 mm.
conclusionThe irradiation accuracy with motion tracking by Radixact Synchrony
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