ArticleJournal of applied clinical medical physics2013
Beam modeling and VMAT performance with the Agility 160-leaf multileaf collimator.
Article in Journal of applied clinical medical physics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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Who cites it
36 citing papers in PubMed, 80 citations in OpenAlex.
- Modeling Elekta VersaHD using the Varian Eclipse treatment planning system for photon beams: A single-institution experience.Journal of applied clinical medical physics · 2019Trial
- Volumetric-modulated arc therapy using multicriteria optimization for body and extremity sarcoma.Journal of applied clinical medical physics · 2016Trial
- Impact of Monaco sequencing parameters on monitor units, plan quality, and optimization time for Elekta Unity liver SBRT plans.Journal of applied clinical medical physics · 2026Article
- A Comparative Analysis of Peripheral Dose Measurement Between Apex and Agility Collimators in Linear Accelerators.Asian Pacific journal of cancer prevention : APJCP · 2026Article
- Implementing Remote Radiotherapy Planning to Increase Patient Flow at a Johannesburg Academic Hospital, South Africa: Protocol for a Prospective Feasibility Study.JMIR research protocols · 2025Article
- Dosimetric comparison of VMAT plans in preoperative short-course rectal radiotherapy.Scientific reports · 2024Article
- Article
- Functional lung avoidance in radiotherapy using optimisation of biologically effective dose with non-coplanar beam orientations.Physics and imaging in radiation oncology · 2023Article
- A discrete ordinates Boltzmann solver for application to inverse planning of photons and protons.Physics in medicine and biology · 2023Article
- Dosimetric evaluation study of IMRT and VMAT techniques for prostate cancer based on different multileaf collimator designs.Radiation and environmental biophysics · 2023Article
- Challenges in modeling the Agility multileaf collimator in treatment planning systems and current needs for improvement.Medical physics · 2022Article
- A phase space model of a Versa HD linear accelerator for application to Monte Carlo dose calculation in a real-time adaptive workflow.Journal of applied clinical medical physics · 2022Article
- Impact of systematic MLC positional uncertainties on the quality of single-isocenter multi-target VMAT-SRS treatment plans.Journal of applied clinical medical physics · 2022Article
- Reduction of systematic dosimetric uncertainties in volumetric modulated arc therapy triggered by patient-specific quality assurance.Physics and imaging in radiation oncology · 2022Article
- Commissioning of a Versa HDJournal of applied clinical medical physics · 2021Article
- Article
- Reference dataset of users' photon beam modeling parameters for the Eclipse, Pinnacle, and RayStation treatment planning systems.Medical physics · 2020Article
- On the need for tuning the dosimetric leaf gap for stereotactic treatment plans in the Eclipse treatment planning system.Journal of applied clinical medical physics · 2019Article
- Monte Carlo and analytic modeling of an Elekta Infinity linac with Agility MLC: Investigating the significance of accurate model parameters for small radiation fields.Journal of applied clinical medical physics · 2019Article
- Dose prescription with spatial uncertainty for peripheral lung SBRT.Journal of applied clinical medical physics · 2019Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Agility multileaf collimator (Elekta AB, Stockholm, Sweden) has 160 leaves of projected width 0.5 cm at the isocenter, with maximum leaf speed 3.5 cms-1. These characteristics promise to facilitate fast and accurate delivery of radiotherapy, particularly volumetric-modulated arc therapy (VMAT). The aim of this study is therefore to create a beam model for the Pinnacle3 treatment planning system (Philips Radiation Oncology Systems, Fitchburg, WI), and to use this beam model to explore the performance of the Agility MLC in delivery of VMAT. A 6 MV beam model was created and verified by measuring doses under irregularly shaped fields. VMAT treatment plans for five typical head-and-neck patients were created using the beam model and delivered using both binned and continuously variable dose rate (CVDR). Results were compared with those for an MLCi unit without CVDR. The beam model has similar parameters to those of an MLCi model, with interleaf leakage of only 0.2%. The verification of irregular fields shows a mean agreement between measured and planned dose of 1.3% (planned dose higher). The Agility VMAT head-and-neck plans show equivalent plan quality and delivery accuracy to those for an MLCi unit, with 95% of verification measurements within 3% and 3 mm of planned dose. Mean delivery time is 133 s with the Agility head and CVDR, 171 s without CVDR, and 282 s with an MLCi unit. Pinnacle3 has therefore been shown to model the Agility MLC accurately, and to provide accurate VMAT treatment plans which can be delivered significantly faster with Agility than with an MLCi.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.