Evidence map›Paper›PMID 33824680›Full record

ArticleBiomedical signal processing and control2021

Evaluation of COVID-19 chest computed tomography: A texture analysis based on three-dimensional entropy.

Andreia S Gaudêncio, Pedro G Vaz, Mirvana Hilal, Guillaume Mahé, Mathieu Lederlin, Anne Humeau-Heurtier, João M Cardoso

Open access · greenAbstract read
In one paragraph

Article in Biomedical signal processing and control, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

4 citing papers in PubMed, 14 citations in OpenAlex.

  1. Radiomics and Artificial Intelligence in Pulmonary Fibrosis.Journal of imaging informatics in medicine · 2025
    Review
  2. COVID-19-The Role of Artificial Intelligence, Machine Learning, and Deep Learning: A Newfangled.Archives of computational methods in engineering : state of the art reviews · 2023
    Review
  3. Article
  4. 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

7 authors at 3 institutions in 2 countries.

Andreia S GaudêncioLIBPhys-UC, Department of Physics, University of Coimbra, Coimbra, 3004-516, Portugal.
Pedro G VazLIBPhys-UC, Department of Physics, University of Coimbra, Coimbra, 3004-516, Portugal.
Mirvana HilalUniv Angers, LARIS - Laboratoire Angevin de Recherche en Ingénierie des Systèmes, 62 Avenue Notre-Dame du Lac, Angers, 49000, France.
Guillaume MahéUniversityHospital of Rennes, Rennes, 35000, France.
Mathieu LederlinUniversityHospital of Rennes, Rennes, 35000, France.
Anne Humeau-HeurtierUniv Angers, LARIS - Laboratoire Angevin de Recherche en Ingénierie des Systèmes, 62 Avenue Notre-Dame du Lac, Angers, 49000, France.
João M CardosoLIBPhys-UC, Department of Physics, University of Coimbra, Coimbra, 3004-516, Portugal.
University of Coimbra · PTCentre Hospitalier Universitaire de Rennes · FRLaboratoire Angevin de Recherche en Mathématiques · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Radiologists, and doctors in general, need relevant information for the quantification and characterization of pulmonary structures damaged by severe diseases, such as the Coronavirus disease 2019 (COVID-19). Texture-based analysis in scope of other pulmonary diseases has been used to screen, monitor, and provide valuable information for several kinds of diagnoses. To differentiate COVID-19 patients from healthy subjects and patients with other pulmonary diseases is crucial. Our goal is to quantify lung modifications in two pulmonary pathologies: COVID-19 and idiopathic pulmonary fibrosis (IPF). For this purpose, we propose the use of a three-dimensional multiscale fuzzy entropy (MFE3D) algorithm. The three groups tested (COVID-19 patients, IPF, and healthy subjects) were found to be statistically different for 9 scale factors (

Indexed as

Computed tomographyCOVID-19Multiscale entropyTexture analysis

Identifiers

PMID33824680
PMCPMC8015668
OpenAlexW3145352525

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.