Evidence map›Paper›PMID 35448713›Full record

ArticleTomography (Ann Arbor, Mich.)2022

Radiation Dose Management in Pediatric Brain CT According to Age and Weight as Continuous Variables.

Yusuke Inoue, Hiroyasu Itoh, Anri Waga, Ryosuke Sasa, Kohei Mitsui

Open access · goldAbstract read
In one paragraph

Article in Tomography (Ann Arbor, Mich.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Yusuke InoueDepartment of Diagnostic Radiology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan.
Hiroyasu ItohDepartment of Radiology, Kitasato University Hospital, Sagamihara 252-0375, Japan.
Anri WagaDepartment of Diagnostic Radiology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan.
Ryosuke SasaDepartment of Radiology, Kitasato University Hospital, Sagamihara 252-0375, Japan.
Kohei MitsuiDepartment of Diagnostic Radiology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan.
Kitasato University · JPKitasato University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The diagnostic reference levels (DRLs) for pediatric brain computed tomography (CT) are provided for groups divided according to age. We investigated the relationships of radiation dose indices (volume CT dose index and dose length product) with age and weight, as continuous variables, in pediatric brain CT. In a retrospective analysis, 980 pediatric brain CT examinations were analyzed. Curve fitting was performed for plots of the CT dose indices versus age and weight, and equations to estimate age- and weight-dependent standard dose indices were derived. Standard dose indices were estimated using the equations, and the errors were calculated. The results showed a biphasic increase in dose indices with increasing age and weight, characterized by a rapid initial and subsequent slow increase. Logarithmic, power, and bilinear functions were well fitted to the plots, allowing estimation of standard dose indices at an arbitrary age or weight. Error analysis suggested that weight was mildly better than age and that the best results were obtained with the bilinear function. Curve fitting of the relationship between CT dose indices and age or weight facilitates the determination of standard dose indices in pediatric brain CT at each facility and is expected to aid the establishment and application of the DRLs.

Indexed as

Diagnostic Reference LevelsTomography, X-Ray ComputedBrainChildHumansRadiation DosageRetrospective Studiesbraincomputed tomographydiagnostic reference levelpediatricsradiation dose

Identifiers

PMID35448713
PMCPMC9027691
OpenAlexW4224320458

What OpenQuestion holds

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LicenceCC BY
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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.