ArticleJournal of applied clinical medical physics2018
Development of a dedicated phantom for multi-target single-isocentre stereotactic radiosurgery end to end testing.
Article in Journal of applied clinical medical physics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Generation, validation, and benchmarking of a commercial independent Monte Carlo calculation beam model for multi-target SRS.Zeitschrift fur medizinische Physik · 2025Article
- A Beam Orientation Quality Assurance Framework for Gyroscopic Stereotactic Radiosurgery Systems.Cureus · 2025Article
- Development of dedicated phantom for end-to-end testing of multiple image-guidance configurations incorporating light-section-based surface guidance system.Journal of applied clinical medical physics · 2025Article
- Evaluation of artificial intelligence and optical image recognition techniques used in OneIso, an off-axis Winston-Lutz quality assurance phantom.Biomedical physics & engineering express · 2024Article
- Off-iso Winston-Lutz test on seven linear accelerators.Journal of applied clinical medical physics · 2024Article
- A Novel Approach for Position Verification and Dose Calculation through Local MVCT Reconstruction.Diagnostics (Basel, Switzerland) · 2024Article
- A multi-institutional trial evaluating the use of an integrated quality assurance phantom for frameless single-isocenter multitarget stereotactic radiosurgery.Frontiers in oncology · 2024Article
- A simplified and effective off-axis Winston-Lutz for single-isocenter multi-target SRS.Journal of applied clinical medical physics · 2023Article
- Detection of rotational errors in single-isocenter multiple-target radiosurgery: Is a routine off-axis Winston-Lutz test necessary?Journal of applied clinical medical physics · 2022Article
- Current status of intra-cranial stereotactic radiotherapy and stereotactic radiosurgery in Australia and New Zealand: key considerations from a workshop and surveys.Physical and engineering sciences in medicine · 2022Article
- Dosimetric impact of rotational errors on the quality of VMAT-SRS for multiple brain metastases: Comparison between single- and two-isocenter treatment planning techniques.Journal of applied clinical medical physics · 2020Article
- Validation of the Fabricated Cast Nylon Head Phantom for Stereotactic Radiosurgery End-to-End Test using Alanine Dosimeter.Journal of medical physicsArticle
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of this project was to design and manufacture a cost-effective end-to-end (E2E) phantom for quantifying the geometric and dosimetric accuracy of a linear accelerator based, multi-target single-isocenter (MTSI) frameless stereotactic radiosurgery (SRS) technique.
methodA perspex Multi-Plug device from a Sun Nuclear ArcCheck phantom (Sun Nuclear, Melbourne, FL) was enhanced to make it more applicable for MTSI SRS E2E testing. The following steps in the SRS chain were then analysed using the phantom: magnetic resonance imaging (MRI) distortion, planning computed tomography (CT) scan and MRI image registration accuracy, phantom setup accuracy using CBCT, dosimetric accuracy using ion chamber, planar film dose measurements and coincidence of linear accelerator mega-voltage (MV), and kilo-voltage (kV) isocenters using Winston-Lutz testing (WLT).
resultsThe dedicated E2E phantom was able to successfully quantify the geometric and dosimetric accuracy of the MTSI SRS technique. MRI distortions were less than 0.5 mm, or half a voxel size. The average MRI-CT registration accuracy was 0.15 mm (±0.31 mm), 0.20 mm (±0.16 mm), and 0.39 mm (±0.11 mm) in the superior/inferior, left/right and, anterior/posterior directions, respectively. The phantom setup accuracy using CBCT was better than 0.2 mm and 0.1°. Point dose measurements were within 5% of the treatment planning system predicted dose. The comparison of planar film doses to the planning system dose distributions, performed using gamma analysis, resulted in pass rates greater than 97% for 3%/1 mm gamma criteria. Finally, off-axis WLT showed MV/kV coincidence to be within 1 mm for off-axis distances up to 60 mm.
conclusionA novel, versatile and cost-effective phantom for comprehensive E2E testing of MTSI SRS treatments was developed, incorporating multiple detector types and fiducial markers. The phantom is capable of quantifying the accuracy of each step in the MTSI SRS planning and treatment process.
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