Evidence map›Paper›PMID 42489836›Full record

ArticleAnnals of nuclear medicine2026

Impact of posture change on patient-specific absorbed dose estimation in nuclear medicine.

Mei Takahashi, Phornpailin Pairodsantikul, Hiroshi Watabe, Miho Shidahara

Abstract read
PubMed Publisher
In one paragraph

Article in Annals of nuclear medicine, 2026. 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
–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

0 citing papers in PubMed.

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

4 authors.

Mei Takahashi *Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan.
Phornpailin Pairodsantikul *Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan.
Hiroshi WatabeDivision of Radiation Protection and Safety Control, Research Center for Accelerator and Radioisotope Science, Tohoku University, Sendai, Japan.
Miho ShidaharaDepartment of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan. miho.shidahara.c2@tohoku.ac.jp.ORCID http://orcid.org/0000-0003-3647-2299

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeInternal dosimetry in nuclear medicine commonly assumes a fixed upright standing posture of subjects. The use of four recent therapeutic radionuclides with longer half-lives causes long exposure to patients during different daily activities and postures. This study aims to evaluate the effect of posture change on organ absorbed doses for seven radionuclides: diagnostic photon/positron-emitters (

methodWhole body Japanese adult male and female digital human phantoms (National Institute of Information and Communications Technology, Japan) in standing and sitting postures were used in this study. Based on the reference biodistribution of

resultsLarge differences in organ absorbed doses between the two postures were observed for diagnostic radionuclides, with ⁹⁹ᵐTc exhibiting more than 15% kidney dose differences. In contrast, therapeutic radionuclides showed less than 4% differences, as their energy deposition is dominated by self-dose.

conclusionIncorporating posture into internal dosimetry may improve the accuracy of absorbed dose estimation and support more personalized applications for diagnostic nuclear medicine.

Indexed as

Internal dosimetryNuclear medicineOrgan absorbed dosePatient posture

Identifiers

PMID42489836

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.