ArticlePhysics and imaging in radiation oncology2018
Evaluating the repeatability and set-up sensitivity of a large field of view distortion phantom and software for magnetic resonance-only radiotherapy.
Article in Physics and imaging in radiation oncology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed.
- MR-PROTECT: Clinical feasibility of a prostate MRI-only radiotherapy treatment workflow and investigation of acceptance criteria.Radiation oncology (London, England) · 2020Trial
- Metal artifact reduction for 3 T MRI-only prostate radiotherapy in patients with hip prostheses: impact on target definition, synthetic CT generation, dose calculation, and fiducial marker identification.Radiation oncology (London, England) · 2026Article
- Phantoms for Quantitative Body MRI: a review and discussion of the phantom value.Magma (New York, N.Y.) · 2024Review
- Commissioning and implementing a Quality Assurance program for dedicated radiation oncology MRI scanners.Journal of applied clinical medical physics · 2024Article
- Characterizing geometric distortions of 3D sequences in clinical head MRI.Magma (New York, N.Y.) · 2022Article
- Developing quality assurance tests for simultaneous Positron Emission Tomography - Magnetic Resonance imaging for radiotherapy planning.Physics and imaging in radiation oncology · 2022Article
- Are cone beam CT image matching skills transferrable from planning CT to planning MRI for MR-only prostate radiotherapy?The British journal of radiology · 2021Article
- Clinical validation of a commercially available deep learning software for synthetic CT generation for brain.Radiation oncology (London, England) · 2021Article
- Cone beam computed tomography for dose calculation quality assurance for magnetic resonance-only radiotherapy.Physics and imaging in radiation oncology · 2021Article
- Determination of acceptance criteria for geometric accuracy of magnetic resonance imaging scanners used in radiotherapy planning.Physics and imaging in radiation oncology · 2021Article
- A phantom based laser marking workflow to visually assess geometric image distortion in magnetic resonance guided radiotherapy.Physics and imaging in radiation oncology · 2021Article
- A modular phantom and software to characterize 3D geometric distortion in MRI.Physics in medicine and biology · 2020Article
- Audit feasibility for geometric distortion in magnetic resonance imaging for radiotherapy.Physics and imaging in radiation oncology · 2020Article
- Sensitivity analysis of different quality assurance methods for magnetic resonance imaging in radiotherapy.Physics and imaging in radiation oncology · 2020Article
- Imaging science and development in modern high-precision radiotherapy.Physics and imaging in radiation oncology · 2019Article
- The accuracy of Magnetic Resonance - Cone Beam Computed Tomography soft-tissue matching for prostate radiotherapy.Physics and imaging in radiation oncology · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
background and purposeMagnetic Resonance (MR)-only radiotherapy requires geometrically accurate MR images over the full scanner Field of View (FoV). This study aimed to investigate the repeatability of distortion measurements made using a commercial large FoV phantom and analysis software and the sensitivity of these measurements to small set-up errors. MATERIALS AND
methodsGeometric distortion was measured using a commercial phantom and software with 2D and 3D acquisition sequences on three different MR scanners. Two sets of repeatability measurements were made: three scans acquired without moving the phantom between scans (single set-up) and five scans acquired with the phantom re-set up in between each scan (repeated set-up). The set-up sensitivity was assessed by scanning the phantom with an intentional 1 mm lateral offset and independently an intentional 1° rotation.
resultsThe mean standard deviation of distortion for all phantom markers for the repeated set-up scans was
conclusionsGeometric distortion measurements using a commercial phantom and associated software appear repeatable, although with some sensitivity to set-up errors. This suggests the phantom and software are appropriate for commissioning a MR-only radiotherapy workflow.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.