Evidence map›Paper›PMID 38026071›Full record

ArticleJournal of contemporary brachytherapy2023

Analysis of source dwell position during treatment in brachytherapy using CT scout images.

Nozomi Nakajima, Tomonori Isobe, Yoshinobu Furuyama, Tetsuya Tomita, Daisuke Kobayashi, Yutaro Mori, Hideyuki Takei, Yoshiaki Nagai, Yasuwo Ide, Keiko Nemoto Murofushi and 2 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of contemporary brachytherapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

0 citing papers in PubMed, 1 citations in OpenAlex.

No citing paper in PubMed yet.

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

12 authors at 7 institutions in 1 country.

Nozomi NakajimaGraduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.
Tomonori IsobeGraduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.
Yoshinobu FuruyamaDepartment of Radiation Oncology, Ibaraki Prefectural Central Hospital, Japan.
Tetsuya TomitaDepartment of Radiology, University of Tsukuba Hospital, Japan.
Daisuke KobayashiDepartment of Radiology, University of Tsukuba Hospital, Japan.
Yutaro MoriGraduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.
Hideyuki TakeiQuantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Japan.
Yoshiaki NagaiFaculty of Health Science, Tsukuba International University, Japan.
Yasuwo IdeFaculty of Health Science, Tsukuba International University, Japan.
Keiko Nemoto MurofushiDepartment of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Japan.
Masaru NakajimaRadiation Oncology Department, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan.
Yasuo YoshiokaRadiation Oncology Department, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan.
University of Tsukuba · JPJapanese Foundation For Cancer Research · JPTsukuba International University · JPUniversity of Tsukuba Hospital · JPIbaraki Prefectural Central Hospital · JPNational Institutes for Quantum and Radiological Science and Technology · JPTokyo Metropolitan Komagome Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Several cases of inaccurate irradiation in brachytherapy have been reported, occurring similarly to external radiation. Due to a large dose per fraction in brachytherapy, inaccurate irradiation can seriously harm a patient. Although various studies have been conducted, systems that detect inaccurate irradiation in brachytherapy are not as developed as those for external irradiation. This study aimed to construct a system that analyzes the source dwell position during irradiation using computed tomography (CT) scout images. The novelty of the study was that by using CT scout images, high versatility and analysis of absolute coordinates can be achieved. Material and methods: A treatment plan was designed with an iridium-192 ( Results: The source dwelling was visible in CT scout image, which was enlarged or reduced depending on applicator geometries. The applicator was enlarged by 127% when 130 mm away from the center of CT gantry. The analysis results using our in-house program were considered adequate; although, analysis parameters required adjustments depending on imaging conditions. Conclusions: The proposed system can be easily implemented for image-guided brachytherapy and can analyze the absolute coordinates of source dwell position. Therefore, the system could be used for preventing inaccurate irradiation by verifying whether brachytherapy was performed properly.

Indexed as

brachytherapyCT imageMATLABsource position

Identifiers

PMID38026071
PMCPMC10669917
OpenAlexW4388702436

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.