Evidence map›Paper›PMID 34888422›Full record

ArticlePhysics and imaging in radiation oncology2021

Treatment plan comparison of proton vs photon radiotherapy for lower-grade gliomas.

Camilla S Byskov, Christian R Hansen, Rikke H Dahlrot, Lene Haldbo-Classen, Charlotte A Haslund, Flemming Kjær-Kristoffersen, Thomas O Kristensen, Yasmin Lassen-Ramshad, Slávka Lukacova, Aida Muhic and 3 more

Open access · goldAbstract read
In one paragraph

Article in Physics and imaging in radiation oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.6field-weighted citation impact, top 15% of its field
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

11 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Selection for proton radiotherapy of grade 1-3 glioma patients.Clinical and translational radiation oncology · 2024
    Article
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  8. Article
  9. Review
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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

13 authors at 4 institutions in 2 countries.

Camilla S ByskovDept of Oncology, Aarhus University Hospital, Aarhus, Denmark.
Christian R HansenDanish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark.
Rikke H DahlrotDanish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark.
Lene Haldbo-ClassenDept of Oncology, Aarhus University Hospital, Aarhus, Denmark.
Charlotte A HaslundDept of Oncology, Aalborg University Hospital, Aalborg, Denmark.
Flemming Kjær-KristoffersenDept of Oncology, Rigshospitalet, Copenhagen, Denmark.
Thomas O KristensenDept of Oncology, Aalborg University Hospital, Aalborg, Denmark.
Yasmin Lassen-RamshadDanish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark.
Slávka LukacovaDept of Oncology, Aarhus University Hospital, Aarhus, Denmark.
Aida MuhicDept of Oncology, Rigshospitalet, Copenhagen, Denmark.
Petra W NyströmDanish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark.
Britta WeberDanish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark.
Jesper F KallehaugeDanish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark.
Aarhus University Hospital · DKAalborg University Hospital · DKOdense University Hospital · DKRigshospitalet · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposePatients with lower-grade gliomas are long-term survivors after radiotherapy and may benefit from the reduced dose to normal tissue achievable with proton therapy. Here, we aimed to quantify differences in dose to the uninvolved brain and contralateral hippocampus and compare the risk of radiation-induced secondary cancer for photon and proton plans for lower-grade glioma patients. MATERIALS AND

methodsTwenty-three patients were included in this in-silico planning comparative study and had photon and proton plans calculated (50.4 Gy(RBE = 1.1), 28 Fx) applying similar dose constraints to the target and organs at risk. Automatically calculated photon plans were generated with a 3 mm margin from clinical target volume (CTV) to planning target volume. Manual proton plans were generated using robust optimisation on the CTV. Dose metrics of organs at risk were compared using population mean dose-volume histograms and Wilcoxon signed-rank test. Secondary cancer risk per 10,000 persons per year (PPY) was estimated using dose-volume data and a risk model for secondary cancer induction.

resultsCTV coverage (V95%>98%) was similar for the two treatment modalities. Mean dose (D

conclusionA significant reduction in mean dose to uninvolved brain and contralateral hippocampus was found with proton planning. The estimated secondary cancer risk was reduced with proton therapy.

Indexed as

Brain cancerproton therapyRadiotherapysecondary cancer riskTreatment Planning

Identifiers

PMID34888422
PMCPMC8637131
OpenAlexW3214877269

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.