ArticleJournal of applied clinical medical physics2025
Commissioning of a motion management system for a 1.5T Elekta Unity MR-Linac: A single institution experience.
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 11 papers.
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Who cites it
11 citing papers in PubMed.
- Dosimetric Evaluation of MR-Guided IMRT and VMAT Techniques for Early-Stage Glottic Cancer: A Pilot Comparative Planning Study.Medicina (Kaunas, Lithuania) · 2026Article
- Three-Discipline Collaborative Radiation Therapy (3DCRT) debate: Medical physics should focus less on geometric precision and more on biological outcomes.Journal of applied clinical medical physics · 2026Article
- Strategies for enhancing delivery efficiency on MR-Linac: A dosimetric study and historical plan review.Journal of applied clinical medical physics · 2026Article
- Development and evaluation of deep learning models for estimating the organ at-risk dose constraint from two-dimensional cine magnetic resonance imaging scans during irradiation.Journal of applied clinical medical physics · 2025Article
- Characterizing the motion management system accuracy on a 1.5T MR-Linac.Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) · 2025Article
- Workflow to detect exceeded dose constraints in pancreatic stereotactic body irradiation after intrafraction motion during magnetic resonance-guided adaptive radiotherapy using a deep learning-refined contour propagation tool.Physics and imaging in radiation oncology · 2025Article
- TrackRAD2025 challenge dataset: real-time tumor tracking for MRI-guided radiotherapy.Medical physics · 2025Article
- Commissioning of a motion management system for a 1.5T Elekta Unity MR-Linac: A single institution experience.Journal of applied clinical medical physics · 2025Article
- Recent technical advancements and clinical applications of MR-guided radiotherapy in lung cancer treatment.Frontiers in oncology · 2025Review
- Real-time tracking of lung tumors using a 1.5T Elekta Unity MR-Linac: first clinical experiences.Frontiers in oncology · 2025Article
- Innovative approaches in precision radiation oncology: advanced imaging technologies and challenges which shape the future of radiation therapy.Frontiers in medicine · 2025Review
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3 authors.
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Abstract
purposeThis work describes a single institution experience of commissioning a real-time target tracking and beam control system, known as comprehensive motion management, for a 1.5 T Elekta MR-Linac.
methodsAnatomical tracking and radiation beam control were tested using the MRI
resultsIt was determined that APM correctly predicted the 3D position of a dynamically moving tracking target to within 1.5 mm for 95% of the imaging frames with no deviation exceeding 2 mm. Among the breathing traces investigated, the mean latency ranged between -21.7 and 7.9 ms with 95% of all observed latencies within 188.3 ms. No discernable differences were observed in the relative profiles or cumulative output for a gated beam relative to an ungated beam with minimal dosimetric impact observed due to system latency. Measured dose profiles for all gated scenarios retained a gamma pass rate of 97% or higher for a 3%/2 mm criteria relative to a theoretical gated dose profile without latency or tracking inaccuracies.
conclusionMRI-guided target tracking and automated beam delivery control were successfully commissioned for the Elekta Unity MR-Linac. These gating features were shown to be highly accurate with an effectively small beam latency for a range of regular and irregular respiratory breathing traces.
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