Evidence map›Paper›PMID 37493606›Full record

ArticleDento maxillo facial radiology2023

Does the shape of the field-of-view influence the magnitude of artefacts from high-density materials in cone-beam computed tomography?

Deivi Cascante-Sequeira, Rocharles Cavalcante Fontenele, Luciano Augusto Cano Martins, Danieli Moura Brasil, Matheus L Oliveira, Deborah Queiroz Freitas, Francisco Haiter-Neto

Open access · greenAbstract read
In one paragraph

Article in Dento maxillo facial radiology, 2023. 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
1.0field-weighted citation impact, top 25% 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, 4 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

7 authors at 2 institutions in 3 countries.

Deivi Cascante-SequeiraDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.ORCID 0000-0002-5009-6632
Rocharles Cavalcante FonteneleDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.ORCID 0000-0002-7803-4740
Luciano Augusto Cano MartinsDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.ORCID 0000-0001-5159-8645
Danieli Moura BrasilDepartment of Oral Diagnosis & Oral Health, University of Louisville School of Dentistry, Louisville, United States of America.ORCID 0000-0002-9519-4578
Matheus L OliveiraDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.ORCID 0000-0002-8054-8759
Deborah Queiroz FreitasDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.ORCID 0000-0002-1425-5966
Francisco Haiter-NetoDepartment of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.ORCID 0000-0002-5610-8307
Universidade Estadual de Campinas (UNICAMP) · BRUniversity of Louisville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare cylindrical and convex triangular field-of-views (FOVs) concerning the magnitude of artefacts from high-density materials in cone-beam CT (CBCT). METHODS AND MATERIALS: Cylinders of amalgam, chromium-cobalt, titanium, and zirconia were individually placed in the anterior and posterior regions of a polymethylmethacrylate phantom and scanned using cylindrical and convex triangular FOVs of the Veraview X800 CBCT device. Using the Image J software, 15 square regions of interest (ROIs) were placed in the axial reconstruction around the middle level of the cylinder and at distances of 0.5, 1.0, and 1.5 cm from the centre of the cylinder. Mean grey value and standard deviation of each ROI were averaged for each distance and subtracted from the values of a control ROI to calculate the magnitude of the artefacts by the grey value mean difference (GVMD) and grey value standard deviation (GVSD). Multiway analysis of variance with Tukey

resultsThe convex triangular FOV increased the GVSD for all materials in the anterior and posterior regions at 0.5 cm compared to the cylindrical FOV (

conclusionThe FOV shape influences the magnitude of artefacts from high-density materials. The convex triangular FOV showed greater artefact magnitude with variability among the high-density materials, region in the FOV, and distance from the material.

Indexed as

ArtifactsCone-Beam Computed TomographyChromiumCobaltHumansPhantoms, ImagingChromiumCobaltArtefactsCone-Beam Computed TomographyDental Materials

Identifiers

PMID37493606
PMCPMC10552126
OpenAlexW4385264655

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.