Evidence map›Paper›PMID 33136313›Full record

ArticleJournal of applied clinical medical physics2020

Development of an HDR-BT QA tool for source position verification.

Yu Kumazaki, Ryuta Hirai, Mitsunobu Igari, Nao Kobayashi, Shohei Okazaki, Takanori Abe, Tomoaki Tamaki, Shin-Ei Noda, Shingo Kato

Abstract read
In one paragraph

Article in Journal of applied clinical medical physics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

9 authors.

Yu KumazakiDepartment of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan.
Ryuta HiraiDepartment of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan.
Mitsunobu IgariDepartment of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan.
Nao KobayashiDepartment of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Shohei OkazakiDepartment of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Takanori AbeDepartment of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan.
Tomoaki TamakiDepartment of Radiation Oncology, Fukushima Medical University, Fukushima, Japan.
Shin-Ei NodaDepartment of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan.
Shingo KatoDepartment of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan.

Funding

JSPS KAKENHI 15K19207
6 · The paper itself

Abstract

purposeThis study aimed to develop a high-dose-rate brachytherapy (HDR-BT) quality assurance (QA) tool for verification of source positions, and to report on its effectiveness.

methodsWe fabricated a cuboid phantom measuring 30 × 30×3 cm

resultsSource position errors on the film and RTPS were in good agreement with one another and were all within 0.5 mm for all applicators. Offset values of each applicator were in good agreement with the value determined in treatment planning (6 mm). The expanded measurement uncertainty of our QA tool was estimated to be 0.87 mm, with a coverage factor k of 2.

conclusionsOur new HDR-BT QA tool developed for comprehensive source position verification will be useful for cross checking actual source positions and planned source positions on the RTPS.

Indexed as

BrachytherapyHumansImaging, Three-DimensionalPhantoms, ImagingRadiotherapy DosageUncertaintyapplicator modelingapplicator offsetHDRQA phantomsource position

Identifiers

PMID33136313
PMCPMC7769398

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LicenceCC BY
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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.