ArticleRadiation oncology (London, England)2015
Characteristics of gated treatment using an optical surface imaging and gating system on an Elekta linac.
Article in Radiation oncology (London, England), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed.
- Shortening breath-hold durations in breast radiotherapy: a novel time-control strategy for deep inspiration breath-hold VMAT.Radiation oncology (London, England) · 2025Article
- Analysis of setup error and setup efficiency in SBRT for non-small cell lung cancer via a surface-guided radiation therapy system.BMC cancer · 2025Article
- A hybrid IGRT workflow using SGRT and CBCT for prostate SBRT: Feasibility, efficiency, and safety.Journal of applied clinical medical physics · 2025Article
- Calibration and volunteer testing of a prototype contactless respiratory motion detection system based on laser tracking.Journal of applied clinical medical physics · 2025Article
- Evaluation of dynamic accuracy and latency of a surface-guided radiotherapy system.Radiological physics and technology · 2025Article
- Efficient EPID-based quality assurance of beam time delay for respiratory-gated radiotherapy with validation on Catalyst™ and AlignRT™ systems.Journal of applied clinical medical physics · 2024Article
- Comprehensive beam delivery latency evaluation for gated proton therapy system using customized multi-channel signal acquisition platform.Journal of applied clinical medical physics · 2024Article
- Characteristics of breathing-adapted gating using surface guidance for use in particle therapy: A phantom-based end-to-end test from CT simulation to dose delivery.Journal of applied clinical medical physics · 2024Article
- Design of a novel 5-camera surface guidance system with multiple imaging isocenters.Journal of applied clinical medical physics · 2022Article
- Evaluation of the detection accuracy of set-up for various treatment sites using surface-guided radiotherapy system, VOXELAN: a phantom study.Journal of radiation research · 2022Article
- Recent advanced in Surface Guided Radiation Therapy.Radiation oncology (London, England) · 2020Review
- Accuracy of real-time respiratory motion tracking and time delay of gating radiotherapy based on optical surface imaging technique.Radiation oncology (London, England) · 2020Article
- Stability and reproducibility of 6013 deep inspiration breath-holds in left-sided breast cancer.Radiation oncology (London, England) · 2020Article
- Impact of surface-guided positioning on the use of portal imaging and initial set-up duration in breast cancer patients.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2019Article
- Technical Note: Characterization of clinical linear accelerator triggering latency for motion management system development.Medical physics · 2018Article
- Real-time intra-fraction motion management in breast cancer radiotherapy: analysis of 2028 treatment sessions.Radiation oncology (London, England) · 2018Article
- Low-cost Kinect Version 2 imaging system for breath hold monitoring and gating: Proof of concept study for breast cancer VMAT radiotherapy.Journal of applied clinical medical physics · 2018Article
- Left-sided breast cancer and risks of secondary lung cancer and ischemic heart disease : Effects of modern radiotherapy techniques.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2018Article
- Prediction-Based Compensation for Gate On/Off Latency during Respiratory-Gated Radiotherapy.Computational and mathematical methods in medicine · 2018Article
- Robust optimization of VMAT for lung cancer: Dosimetric implications of motion compensation techniques.Journal of applied clinical medical physics · 2017Article
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8 authors.
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Abstract
backgroundKnowing the technical characteristics of gated radiotherapy equipment is crucial for ensuring precise and accurate treatment when using techniques such as Deep-Inspiration Breath-Hold and gating under free breathing. With one of the first installations of the novel surface imaging system Catalyst™ (C-RAD AB, Sweden) in connection with an Elekta Synergy linear accelerator (Elekta AB, Sweden) via the Elekta Response Interface, characteristics like dose delivery accuracy and time delay were investigated prior to clinical implementation of gated treatments in our institution.
methodsIn this study a moving phantom was used to simulate respiratory motion which was registered by the Catalyst™ system. The gating level was set manually. Within this gating window a trigger signal is automatically sent to the linac initiating treatment delivery. Dose measurements of gated linac treatment beams with different gating levels were recorded with a static 2D-Diode Array (MapCheck2, Sun Nuclear Co., USA) and compared to ungated reference measurements for different field sizes. In addition, the time delay of gated treatment beams was measured using radiographic film.
resultsThe difference in dose delivery between gated and ungated treatment decreases with the size of the chosen gating level. For clinically relevant gating levels of about 30%, the differences in dose delivery accuracy remain below 1%. In comparison with other system configurations in literature, the beam-on time delay shows a large deviation of 851 ms ± 100 ms.
conclusionsWhen performing gated treatment, especially for free-breathing gating, factors as time delay and dose delivery have to be evaluated regularly in terms of a quality assurance process. Once these parameters are known they can be accounted and compensated for, e.g. by adjusting the pre-selected gating level or the internal target volume margins and by using prediction algorithms for breathing curves. The usage of prediction algorithms becomes inevitable with the high beam-on time delay which is reported here.
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