Evidence map›Paper›PMID 28799286›Full record

ArticleJournal of applied clinical medical physics2017

Fetal dose conversion factor for fetal computed tomography examinations: A mathematical phantom study.

Yuta Matsunaga, Ai Kawaguchi, Masanao Kobayashi, Shoichi Suzuki, Yasuki Asada, Kiyoshi Ito, Koichi Chida

Open access · goldAbstract read
In one paragraph

Article in Journal of applied clinical medical physics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 41% 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

3 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
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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

7 authors at 2 institutions in 1 country.

Yuta MatsunagaGraduate school of Medicine, Tohoku University, Aoba-ku, Sendai, Japan.
Ai KawaguchiGraduate school of Medicine, Tohoku University, Aoba-ku, Sendai, Japan.
Masanao KobayashiSchool of Health Sciences, Fujita Health University, Toyoake, Japan.
Shoichi SuzukiSchool of Health Sciences, Fujita Health University, Toyoake, Japan.
Yasuki AsadaSchool of Health Sciences, Fujita Health University, Toyoake, Japan.
Kiyoshi ItoDepartment of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDeS), Tohoku University, Aoba-ku, Sendai, Japan.
Koichi ChidaGraduate school of Medicine, Tohoku University, Aoba-ku, Sendai, Japan.
Tohoku University · JPFujita Health University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to examine the relationship between fetal dose and the dose-length product, and to evaluate the impact of the number of rotations on the fetal doses and maternal effective doses using a 320-row multidetector computed tomography unit in a wide-volume mode. The radiation doses for the pregnant woman and the fetus were estimated using ImPACT CT Patient Dosimetry Calculator software for scan lengths ranging from 176 to 352 mm, using a 320-row unit in a wide-volume mode and an 80-row unit in a helical scanning mode. In the 320-row unit, the fetal doses in all scan lengths ranged from 3.51 to 6.52 mGy; the maternal effective doses in all scan lengths ranged from 1.05 to 2.35 mSv. In the 80-row unit, the fetal doses in all scan lengths ranged from 2.50 to 3.30 mGy; the maternal effective doses in all scan lengths ranged from 0.83 to 1.68 mSv. The estimated conversion factors from the dose-length product (mGy・cm) to fetal doses (mGy) for the 320-row unit in wide-volume mode and the 80-row unit in helical scanning mode were 0.06 and 0.05 (cm

Indexed as

Phantoms, ImagingRadiation DosageTomography, X-Ray ComputedFemaleFetusHumansMultidetector Computed TomographyPregnancyRadiation ExposureRadiometrycomputed tomographydose-length productfetal dosepregnant woman

Identifiers

PMID28799286
PMCPMC5874942
OpenAlexW2743929130

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.