Evidence map›Paper›PMID 32314666›Full record

ArticleThe neuroradiology journal2020

Comparing image quality of single- and dual-energy computed tomography of the brain.

Doris Dodig, Slavica Kovačić, Zrinka Matana Kaštelan, Iva Žuža, Filip Benić, Jurković Slaven, Damir Miletić, Zoran Rumboldt

Open access · greenAbstract readComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in The neuroradiology journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 55% 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

1 citing paper in PubMed, 3 citations in OpenAlex.

  1. 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

8 authors at 2 institutions in 2 countries.

Doris DodigRadiology Department, Clinical Hospital Center Rijeka, Croatia.ORCID https://orcid.org/0000-0001-9462-4516
Slavica KovačićRadiology Department, Clinical Hospital Center Rijeka, Croatia.
Zrinka Matana KaštelanRadiology Department, Clinical Hospital Center Rijeka, Croatia.
Iva ŽužaRadiology Department, Clinical Hospital Center Rijeka, Croatia.
Filip BenićRadiology Department, Clinical Hospital Center Rijeka, Croatia.
Jurković SlavenClinic for Radiotherapy and Oncology, Clinical Hospital Center Rijeka, Croatia.
Damir MiletićRadiology Department, Clinical Hospital Center Rijeka, Croatia.
Zoran RumboldtDepartment of Radiology, University of Rijeka, Croatia.
University of Rijeka · HRMedical University of South Carolina · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWeighted average dual-energy computed tomography (DE-CT) reconstructions are considered a proxy of standard CT images of the brain, recommended for routine clinical use and used as a reference standard in DE-CT research. However, their image quality has not been assessed, which was the aim of our study.

methodsImages from 81 consecutive patients who underwent both non-contrast single-energy (SE)-CT and DE-CT of the brain on the same scanner were retrospectively evaluated. Attenuation values (HU) and SD of grey matter/white matter (GM/WM) pairs, along with SD in the posterior fossa and subcalvarial region were measured. Four readers evaluated image noise, GM/WM contrast, posterior fossa and subcalvarial artefacts, as well as overall image quality.

resultsWeighted average DE-CT GM and WM HU were significantly lower and noise higher compared to SE-CT (GM HU 36.46 v. 41.82; WM HU 28.18 v. 29.94; GM SD 2.93 v. 2.49; and WM SD 3.16 v. 2.44, all

conclusionWeighted average DE-CT images of the brain yield less artefacts at 37% dose reduction and lower noise at SE-CT equivalent dose. Dose-adjusted GM/WM contrast-to-noise ratio of weighted average DE-CT with 0.4 weighting factor remains inferior to SE-CT images.

Indexed as

AdolescentAdultAgedAged, 80 and overArtifactsBrainFemaleHumansMaleMiddle AgedNeuroimagingRadiographic Image Interpretation, Computer-AssistedRetrospective StudiesTomography, X-Ray ComputedYoung AdultartefactsBraindual-energy computed tomographyimage quality

Identifiers

PMID32314666
PMCPMC7286188
OpenAlexW3017082325

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.