Evidence map›Paper›PMID 29726838›Full record

ArticlePhysiological measurement2018

Estimating regions of air trapping from electrical impedance tomography data.

Jennifer L Mueller, Peter Muller, Michelle Mellenthin, Rashmi Murthy, Michael Capps, Melody Alsaker, Robin Deterding, Scott D Sagel, Emily DeBoer

Abstract read
In one paragraph

Article in Physiological measurement, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Simultaneous Acquisition of EIT and ECG Signals on Active EIT Electrodes.IEEE transactions on bio-medical engineering · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. 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

9 authors.

Jennifer L MuellerDepartment of Mathematics, Colorado State University, Fort Collins, CO, United States of America.
Peter MullerDepartment of Mathematics, Colorado State University, Fort Collins, CO, United States of America.
Michelle MellenthinSchool of Biomedical Engineering, Colorado State University, Fort Collins, CO, United States of America.
Rashmi MurthyDepartment of Mathematics, Colorado State University, Fort Collins, CO, United States of America.
Michael CappsDepartment of Mathematics, Colorado State University, Fort Collins, CO, United States of America.
Melody AlsakerDepartment of Mathematics, Colorado State University, Fort Collins, CO, United States of America.
Robin DeterdingDepartment of Pediatrics, Children's Hospital Colorado, and Colorado School of Medicine, Aurora, CO, United States of America.
Scott D SagelDepartment of Pediatrics, Children's Hospital Colorado, and Colorado School of Medicine, Aurora, CO, United States of America.
Emily DeBoerDepartment of Pediatrics, Children's Hospital Colorado, and Colorado School of Medicine, Aurora, CO, United States of America.

Funding

EIT: a non-radiating functional imaging method for cystic fibrosisR21EB016869 · NIBIB · COLORADO STATE UNIVERSITY · PI MUELLER, JENNIFER LYNN · 2013 to 2014
$376k
NIBIB NIH HHS R21 EB016869
6 · The paper itself

Abstract

objectiveElectrical impedance tomography (EIT) has been shown to be a viable non-invasive, bedside imaging modality to monitor lung function. This paper introduces a method for identifying regions of air trapping from EIT data collected during tidal breathing and breath-holding maneuvers. APPROACH: Ventilation-perfusion index maps are computed from dynamic EIT images. These maps are then used to identify regions of air trapping in the area of the lung as regions that are poorly ventilated but well perfused throughout the breathing and cardiac cycles. These EIT-identified regions are then compared with independently identified regions of low attenuation, or air trapping, on chest CT. Results of this method are demonstrated in two children with cystic fibrosis and on a healthy control subject. MAIN

resultsIn both CF children, the EIT-identified regions of air trapping matched the regions indicated from the chest CT. The EIT-based method is only validated with CT scans within 4 cm of the chest cross-section defined by the electrode plane. SIGNIFICANCE: The results indicate the potential use of EIT-derived ventilation-perfusion index maps as a non-invasive method for identifying regions of air trapping.

Indexed as

AirImage Processing, Computer-AssistedRespirationTomographyChildCystic FibrosisElectric ImpedanceFemaleHumansMale

Identifiers

PMID29726838
PMCPMC6015736

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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.