Evidence map›Paper›PMID 34124832›Full record

ArticleJournal of applied clinical medical physics2021

Increase in the intensity of an optical signal with fluorescein during proton and carbon-ion irradiation.

Seiichi Yamamoto, Takuya Yabe, Takashi Akagi

Open access · goldAbstract read
In one paragraph

Article in Journal of applied clinical medical physics, 2021. 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
0.9field-weighted citation impact, top 25% 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, 6 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

3 authors at 3 institutions in 1 country.

Seiichi YamamotoDepartment of Integrated Health Science, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Takuya YabeDepartment of Integrated Health Science, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Takashi AkagiHyogo Ion Beam Medical Center, Tatsuno, Japan.
Hyogo Ion Beam Medical Center · JPNagoya University · JPNagoya University Hospital · JP

Funding

JSPS KAKENHI 18K19909JSPS KAKENHI 19H00672
6 · The paper itself

Abstract

purposeAlthough the imaging of luminescence emitted in water during irradiation of protons and carbon ions is a useful method for range and dose estimations, the intensity of the images is relatively low due to the low photon production of the luminescence phenomenon. Therefore, a relatively long time is required for the imaging. Since a fluorescent dye, fluorescein, may increase the intensity of the optical signal, we measured the luminescence images of water with different concentrations of fluorescein during irradiation of protons and carbon ions and compared the results with those by measurements with water.

methodsA cooled charge-coupled device (CCD) camera was used for imaging a water phantom with different concentrations of fluorescein from 0.0063 to 0.025 mg/cm

resultsFor both protons and carbon ions, the intensity of the luminescence images increased as the concentration of fluorescein increased. With a fluorescein concentration of 0.025 mg/cm

conclusionWe confirmed the increase in intensity of the luminescence of water by adding fluorescein for particle ions. With a small amount of Cherenkov light contamination in the images, such as protons, the relative distributions of the luminescence images with fluorescein were similar to that of water and will be used for range or dose determination in a short time.

Indexed as

Heavy Ion RadiotherapyProtonsCarbonFluoresceinHumansPhantoms, ImagingCarbonFluoresceinProtonscarbon ionCherenkov lightfluoresceinimagingluminescenceproton

Identifiers

PMID34124832
PMCPMC8292686
OpenAlexW3171554512

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.