ArticleQuantitative imaging in medicine and surgery2018
Assessment of positional reproducibility in the head and neck on a 1.5-T MR simulator for an offline MR-guided radiotherapy solution.
Article in Quantitative imaging in medicine and surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Beyond Couch Correction in Head and Neck Radiotherapy: A Narrative Review of Action-Oriented Positioning Management.Cancers · 2026Review
- Towards a shuttle-based workflow for daily online magnetic resonance imaging-guided particle therapy: Anatomical robustness and organ variability in the female pelvis.Technical innovations & patient support in radiation oncology · 2026Article
- Stability of liver position in a shuttle-based workflow for daily online magnetic resonance imaging-guided particle therapy.Physics and imaging in radiation oncology · 2025Article
- AAPM Task Group 334: A guidance document to using radiotherapy immobilization devices and accessories in an MR environment.Medical physics · 2024Article
- Multi-parametric MRI for radiotherapy simulation.Medical physics · 2023Review
- Article
- Acquisition repeatability of MRI radiomics features in the head and neck: a dual-3D-sequence multi-scan study.Visual computing for industry, biomedicine, and art · 2022Article
- A pilot study of highly accelerated 3D MRI in the head and neck position verification for MR-guided radiotherapy.Quantitative imaging in medicine and surgery · 2019Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRecently, a shuttle-based offline magnetic resonance-guided radiotherapy (MRgRT) approach was proposed. This study aims to evaluate the positional reproducibility in the immobilized head and neck using a 1.5-T MR-simulator (MR-sim) on healthy volunteers.
methodsA total of 159 scans of 14 healthy volunteers were conducted on a 1.5-T MR-sim with thermoplastic mask immobilization. MR images with isotropic 1.05
resultsThe systematic error (Σ) of translation in left-right (LR), anterior-posterior (AP) and superior-inferior (SI) direction was 0.57, 0.22 and 0.26 mm for fiducial displacement, 0.28, 0.10 and 0.52 mm for anatomical displacement, and 0.53, 0.22 and 0.49 mm for gross displacement, respectively. The random error (σ) in corresponding translation direction was 2.07, 0.54 and 1.32 mm for fiducial displacement, 1.34, 0.73 and 2.04 mm for anatomical displacement, and 2.24, 0.86 and 2.61 mm for gross displacement. The systematic error and random error of rotation were generally smaller than 1°.
conclusionsOur results suggested that high gross positional reproducibility (<1 mm translational and <1° rotational systematic error) could be achieved on an MR-sim for the proposed offline MRgRT.
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