Evidence map›Paper›PMID 35235188›Full record

ArticlePhysical and engineering sciences in medicine2022

Commissioning measurements on an Elekta Unity MR-Linac.

Marcus Powers, John Baines, Robert Crane, Chantelle Fisher, Stephen Gibson, Linda Marsh, Bronwyn Oar, Ariadne Shoobridge, Emily Simpson-Page, Marchant Van der Walt and 1 more

Abstract read
In one paragraph

Article in Physical and engineering sciences in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Guideline
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Magnetic Resonance Imaging Sequences and Technologies in Adaptive Radiation Therapy.International journal of radiation oncology, biology, physics · 2025
    Review
  11. Article
  12. Article
  13. Advancements in Tissue-Equivalent Gel Dosimeters.Gels (Basel, Switzerland) · 2025
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Marcus PowersTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia. marcus.powers@my.jcu.edu.au.ORCID http://orcid.org/0000-0002-4235-6123
John BainesTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia. john.baines@health.qld.gov.au.
Robert CraneTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.
Chantelle FisherTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.
Stephen GibsonTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.
Linda MarshTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.
Bronwyn OarTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.
Ariadne ShoobridgeTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.
Emily Simpson-PageCancer Care Services, Royal Brisbane and Women's Hospital, Herston, QLD, Australia.
Marchant Van der WaltTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.
Glenn de VineTownsville Cancer Centre, Townsville Hospital and Health Service, Townsville, QLD, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Magnetic resonance-guided radiotherapy technology is relatively new and commissioning publications, quality assurance (QA) protocols and commercial products are limited. This work provides guidance for implementation measurements that may be performed on the Elekta Unity MR-Linac (Elekta, Stockholm, Sweden). Adaptations of vendor supplied phantoms facilitated determination of gantry angle accuracy and linac isocentre, whereas in-house developed phantoms were used for end-to-end testing and anterior coil attenuation measurements. Third-party devices were used for measuring beam quality, reference dosimetry and during treatment plan commissioning; however, due to several challenges, variations on standard techniques were required. Gantry angle accuracy was within 0.1°, confirmed with pixel intensity profiles, and MV isocentre diameter was < 0.5 mm. Anterior coil attenuation was approximately 0.6%. Beam quality as determined by TPR

Indexed as

Particle AcceleratorsRadiotherapy, Image-GuidedGamma RaysPhantoms, ImagingRadiometryCommissioningElekta UnityMR-Linac

Identifiers

PMID35235188
PMCPMC9239956

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.