Evidence map›Paper›PMID 33948302›Full record

ArticleReports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology2021

A comparison of symmetry and flatness measurements in small electron fields by different dosimeters in electron beam radiotherapy.

Mohamad Reza Bayatiani, Fatemeh Fallahi, Akbar Aliasgharzadeh, Mahdi Ghorbani, Benyamin Khajetash, Fatemeh Seif

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Article in Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Mohamad Reza BayatianiMedical Physics and Radiotherapy Department, School of Paramedical Sciences, Arak University of Medical Sciences and Khansari Hospital, Arak, Iran.
Fatemeh FallahiDepartment of Medical Physics, School of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran.
Akbar AliasgharzadehDepartment of Medical Physics, School of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran.
Mahdi GhorbaniBiomedical Engineering and Medical Physics Department, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Benyamin KhajetashMedical Physics Department, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Fatemeh SeifMedical Physics and Radiotherapy Department, School of Paramedical Sciences, Arak University of Medical Sciences and Khansari Hospital, Arak, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSymmetry and flatness are two quantities which should be evaluated in the commissioning and quality control of an electron beam in electron beam radiotherapy. The aim of this study is to compare symmetry and flatness obtained using three different dosimeters for various small and large fields in electron beam radiotherapy with linac. MATERIALS AND

methodsBeam profile measurements were performed in a PTW water phantom for 10, 15 and 18 MeV electron beams of an Elekta Precise linac for small and large beams (1.5 × 1.5 cm

resultsBased on the obtained results, there are minor differences between the responses from different dosimeters (Diode E detector and Semiflex-3D and Advanced Markus ionization chambers) in measurement of symmetry and flatness for the electron beams. The symmetry and flatness values increase with increasing field size and electron beam energy for small and large field sizes, while the increases are minor in some cases.

conclusionsThe results indicate that the differences between the symmetry and flatness values obtained from the three dosimeter types are not practically important.

Indexed as

Advanced MarkusDiode Eelectron beamflatnessradiotherapySemiflex-3Dsmall field dosimetrysymmetry

Identifiers

PMID33948302
PMCPMC8086714

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