Evidence map›Paper›PMID 33446781›Full record

ArticleScientific reports2021

CT image segmentation for inflamed and fibrotic lungs using a multi-resolution convolutional neural network.

Sarah E Gerard, Jacob Herrmann, Yi Xin, Kevin T Martin, Emanuele Rezoagli, Davide Ippolito, Giacomo Bellani, Maurizio Cereda, Junfeng Guo, Eric A Hoffman and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
7.4field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Pooled it
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  9. Observational
  10. Observational
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  12. Imaging the Lung in ARDS: A Primer.Respiratory care · 2024
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  14. Structural Predictors of Lung Function Decline in Young Smokers with Normal Spirometry.American journal of respiratory and critical care medicine · 2024
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 2 countries.

Sarah E GerardDepartment of Radiology, University of Iowa, Iowa City, IA, USA. sarah-gerard@uiowa.edu.
Jacob HerrmannDepartment of Biomedical Engineering, Boston University, Boston, MA, USA.
Yi XinDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Kevin T MartinDepartment of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA, USA.
Emanuele RezoagliDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
Davide IppolitoDepartment of Diagnostic and Interventional Radiology, San Gerardo Hospital, Monza, Italy.
Giacomo BellaniDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
Maurizio CeredaDepartment of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA, USA.
Junfeng GuoDepartment of Radiology, University of Iowa, Iowa City, IA, USA.
Eric A HoffmanDepartment of Radiology, University of Iowa, Iowa City, IA, USA.
David W KaczkaDepartment of Radiology, University of Iowa, Iowa City, IA, USA.
Joseph M ReinhardtDepartment of Radiology, University of Iowa, Iowa City, IA, USA.
University of Iowa · USAzienda Ospedaliera San Gerardo · ITUniversity of Pennsylvania · USBoston University · US

Funding

Pulmonary Toxicology Facility CoreP30ES005605 · NIEHS · UNIVERSITY OF IOWA · PI Brandi Janssen · 1990 to 2026
$40.5M
Metabolomic signatures of empysema and COPD progression in the COPDGene cohortR01HL089897 · NHLBI · NATIONAL JEWISH HEALTH · PI CRAPO, JAMES D · 2012 to 2016
$31.1M
Vector Core-Core 2P30DK054759 · NIDDK · UNIVERSITY OF IOWA · PI Alejandro Antonio Pezzulo · 1998 to 2026
$30.5M
(2 of 2) Genetic Epidemiology of COPDR01HL089856 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2012 to 2016
$18.9M
An Integrated Approach to Predict and Improve the Outcomes of Lung InjuryR01HL137389 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI CEREDA, MAURIZIO FRANCO · 2018 to 2021
$3.0M
Lung Biomechanics and Disease Progression in SPIROMICSR01HL142625 · NHLBI · UNIVERSITY OF IOWA · PI REINHARDT, JOSEPH M · 2018 to 2021
$2.2M
Iowa Lung Imaging Training ProgramT32HL144461 · NHLBI · UNIVERSITY OF IOWA · PI HOFFMAN, ERIC ALFRED, REINHARDT, JOSEPH M · 2019 to 2023
$1.6M
NHLBI NIH HHS R01 HL089856NHLBI NIH HHS R01 HL089897NHLBI NIH HHS R01 HL137389NHLBI NIH HHS R01 HL142625NHLBI NIH HHS T32 HL144461NIDDK NIH HHS P30 DK054759NIEHS NIH HHS P30 ES005605NIH HHS R01-HL142625Office of the Assistant Secretary of Defense for Health Affairs W81XWH-16-1-0434Roy J. Carver Charitable Trust 19-5154
6 · The paper itself

Abstract

The purpose of this study was to develop a fully-automated segmentation algorithm, robust to various density enhancing lung abnormalities, to facilitate rapid quantitative analysis of computed tomography images. A polymorphic training approach is proposed, in which both specifically labeled left and right lungs of humans with COPD, and nonspecifically labeled lungs of animals with acute lung injury, were incorporated into training a single neural network. The resulting network is intended for predicting left and right lung regions in humans with or without diffuse opacification and consolidation. Performance of the proposed lung segmentation algorithm was extensively evaluated on CT scans of subjects with COPD, confirmed COVID-19, lung cancer, and IPF, despite no labeled training data of the latter three diseases. Lobar segmentations were obtained using the left and right lung segmentation as input to the LobeNet algorithm. Regional lobar analysis was performed using hierarchical clustering to identify radiographic subtypes of COVID-19. The proposed lung segmentation algorithm was quantitatively evaluated using semi-automated and manually-corrected segmentations in 87 COVID-19 CT images, achieving an average symmetric surface distance of [Formula: see text] mm and Dice coefficient of [Formula: see text]. Hierarchical clustering identified four radiographical phenotypes of COVID-19 based on lobar fractions of consolidated and poorly aerated tissue. Lower left and lower right lobes were consistently more afflicted with poor aeration and consolidation. However, the most severe cases demonstrated involvement of all lobes. The polymorphic training approach was able to accurately segment COVID-19 cases with diffuse consolidation without requiring COVID-19 cases for training.

Indexed as

Neural Networks, ComputerSARS-CoV-2Tomography, X-Ray ComputedCOVID-19FemaleHumansLungMalePulmonary Fibrosis

Identifiers

PMID33446781
PMCPMC7809065
OpenAlexW3092972206

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.