Evidence map›Paper›PMID 37549961›Full record

ArticleJournal of radiation research2023

Internal organ dose rate conversion coefficients of Japanese macaques to 134Cs,137Cs and 131I†.

Yuta Takamura, Tsuyoshi Kajimoto, Kenichi Tanaka, Tomoya Yamamoto, Masatoshi Suzuki, Yohei Inaba, Koichi Chida, Manabu Fukumoto, Chary Rangacharyulu, Satoru Endo

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of radiation research, 2023. 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.

  1. Article
  2. 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

10 authors.

Yuta TakamuraQuantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
Tsuyoshi KajimotoQuantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
Kenichi TanakaLaboratory of Physics, Division of Liberal Arts Sciences, Kyoto Pharmaceutical University, 5, Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto 607-8414, Japan.
Tomoya YamamotoQuantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
Masatoshi SuzukiRadiological Disasters and Medical Science Lab, International Research Institute of Disaster Science, Tohoku University, 519-1176 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-0845, Japan.
Yohei InabaRadiological Disasters and Medical Science Lab, International Research Institute of Disaster Science, Tohoku University, 519-1176 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-0845, Japan.
Koichi ChidaRadiological Disasters and Medical Science Lab, International Research Institute of Disaster Science, Tohoku University, 519-1176 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-0845, Japan.
Manabu FukumotoRadiological Disasters and Medical Science Lab, International Research Institute of Disaster Science, Tohoku University, 519-1176 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-0845, Japan.
Chary RangacharyuluDepartment of Physics and Engineering Physics, University Saskatchewan, Saskatoon, SK S7N 5E2, Canada.
Satoru EndoQuantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.

Funding

FY2021 JSPS Invitational Fellowships for Research in JapanJAEA Nuclear Energy S&T JPJA19B19207322
6 · The paper itself

Abstract

The purpose of this study was to estimate the internal dose of radiation in Japanese macaques (aka Nihonzaru or snow monkey) due to the Fukushima nuclear power plant accident. Images of a male Japanese macaque weighing ~10 kg were acquired using a multi-slice computed tomography (CT) scan with a 64-row segment detector. The CT images were used to create voxel phantoms of the bones, bone marrow, brain, eyes, heart, lungs, stomach, liver, spleen, pancreas, kidneys, intestines, bladder, testes, thyroid and miscellaneous tissue. The Particle and Heavy Ion Transport System (PHITS) Monte Carlo code was used to calculate the internal exposure rate conversion factors for 134Cs, 137Cs and 131I isotopes for the created voxel phantoms with a statistical precision higher than 1%. The PHITS-calculated energy deposits were compared with those for rhesus monkeys. The results showed that the fractions of energy deposits for β-radiation in different organs were almost identical between the two species. For γ-radiation, there was excellent agreement in the self-absorption rate with the approximate curve of the Japanese macaque, with an average deviation of 2%. The maximum deviation of 12% was for the kidney, which has two organs, so the error with the approximate curve is slightly larger due to the energy loss created between organs.

Indexed as

Cesium RadioisotopesRadiometryAnimalsIodine RadioisotopesMacaca fuscataMonte Carlo MethodPhantoms, ImagingRadiation DosageCesium-134Cesium-137Cesium RadioisotopesIodine-131Iodine Radioisotopes131I134Cs137Csabsorbed fractioninternal exposureinternal exposure rate conversion coefficient

Identifiers

PMID37549961
PMCPMC10516734

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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.