Evidence map›Paper›PMID 26268141›Full record

ArticleThe British journal of radiology2015

Voluntary breath-holding for breast cancer radiotherapy is consistent and stable.

Ruth Colgan, Matthew James, Frederick R Bartlett, Anna M Kirby, Ellen M Donovan

Abstract read
In one paragraph

Article in The British journal of radiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Changes in radiotherapy fractionation-breast cancer.The British journal of radiology · 2019
    Pooled it
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  12. Voluntary breath-hold reduces dose to organs at risk in radiotherapy of left-sided breast cancer.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology
    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

5 authors.

Ruth Colgan1 Physics Department, The Royal Marsden NHS Foundation Trust, Sutton, UK.
Matthew James1 Physics Department, The Royal Marsden NHS Foundation Trust, Sutton, UK.
Frederick R Bartlett2 Southampton Oncology Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.
Anna M Kirby3 Department of Radiotherapy, The Royal Marsden NHS Foundation Trust, Sutton, UK.
Ellen M Donovan1 Physics Department, The Royal Marsden NHS Foundation Trust, Sutton, UK.

Funding

Cancer Research UK 19727Department of Health PB-PG-1010-23003
6 · The paper itself

Abstract

objectiveTo evaluate breath-hold stability and constancy for a voluntary breath-hold (VBH) technique in a retrospective analysis.

methodsMovie loop sequences of electronic portal image data from multiple breath holds in a cohort of 19 patients were used to assess within and between breath-hold stability. In vivo dosimetry data based on electronic portal imaging (EPI) were analysed for 31 VBH patients plus a cohort of free-breathing (FB) patients to provide a reference. A phantom experiment simulated the impact on dose of FB, breath hold and unplanned release of breath hold.

results165/174 (93%) movie loop data sets had no detectable displacement. For the remaining 12, median displacement = 1.5 mm and maximum displacement = 3 mm (one patient on one fraction). In vivo dosimetry data analysis showed a median dose difference measured to planned of -0.2% (VBH) and -0.1% (FB). Dose distribution evaluation (γ) pass rates were 84% (VBH) and 91% (FB) including the lung region; 93% and 96% with a lung override. Unplanned release of phantom breath-hold position changed median dose by ≤1% and degraded γ pass rates to 79-62%. Failing regions were mostly in the periphery of the treated volume.

conclusionThe data confirmed that multiple VBHs using visual monitoring are stable; in vivo dose verification via EPI was within expected and acceptable levels. ADVANCES IN KNOWLEDGE: These data provide further reassurance that VBH is a safe technique for cardiac sparing breast radiotherapy and support its rapid, widespread implementation.

Indexed as

Breath HoldingRadiotherapy DosageBreast NeoplasmsCohort StudiesFemaleHumansPhantoms, ImagingRespirationRetrospective StudiesVideotape Recording

Identifiers

PMID26268141
PMCPMC4730975

What OpenQuestion holds

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Registered trials

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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.