Evidence map›Paper›PMID 29565263›Full record

ArticlePhysiological measurement2018

Evaluation of surrogate measures of pulmonary function derived from electrical impedance tomography data in children with cystic fibrosis.

Peter A Muller, Jennifer L Mueller, Michelle Mellenthin, Rashmi Murthy, Michael Capps, Brandie D Wagner, Melody Alsaker, Robin Deterding, Scott D Sagel, Jordana Hoppe

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 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Article
  3. Thoracic electrical impedance tomography for assessing progression of pulmonary dysfunction in ALS.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2025
    Article
  4. Simultaneous Acquisition of EIT and ECG Signals on Active EIT Electrodes.IEEE transactions on bio-medical engineering · 2025
    Article
  5. Assessing pulmonary function in ALS using electrical impedance tomography.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. The ACE1 Electrical Impedance Tomography System for Thoracic Imaging.IEEE transactions on instrumentation and measurement · 2019
    Article
  14. 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

10 authors at 3 institutions in 1 country.

Peter A MullerDepartment of Mathematics & Statistics, Villanova University, PA, United States of America.
Jennifer L MuellerDepartment of Mathematics, Colorado State University, CO, United States of America.
Michelle MellenthinDepartment of Bioengineering, University of Colorado-Denver, CO, United States of America.
Rashmi MurthyDepartment of Mathematics, Colorado State University, CO, United States of America.
Michael CappsDepartment of Mathematics, Colorado State University, CO, United States of America.
Brandie D WagnerDepartment of Biostatistics, University of Colorado, Anschutz Medical Campus, Denver, CO, United States of America.
Melody AlsakerMathematics Department at Gonzaga University, Spokane, WA, United States of America.
Robin DeterdingDepartment of Pediatrics, University of Colorado School of Medicine, CO, United States of America.
Scott D SagelDepartment of Pediatrics, University of Colorado School of Medicine, CO, United States of America.
Jordana HoppeDepartment of Pediatrics, University of Colorado School of Medicine, CO, United States of America.
Colorado State University · USUniversity of Colorado Denver · USUniversity of Colorado Anschutz Medical Campus · US

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

objectiveLung function monitoring by spirometry plays a critical role in the clinical care of pediatric cystic fibrosis (CF) patients, but many young children are unable to perform spirometry, and the outputs are often normal even in the presence of lung disease. Measures derived from electrical impedance tomography (EIT) images were studied for their utility as potential surrogates for spirometry in CF patients and to assess response to intravenous antibiotic treatment for acute pulmonary exacerbations (PEx) in a subset of patients. APPROACH: EIT data were collected on 35 subjects (21 with CF, 14 healthy controls, 8 CF patients pre- and post-treatment for an acute PEx) ages 2 to 20 years during tidal breathing and also concurrently with spirometry on subjects over age 8. EIT-derived measures of FEV1, FVC, and FEV1/FVC were computed globally and regionally from dynamic EIT images. MAIN

resultsGlobal EIT-derived FEV1/FVC showed good correlation with spirometry FEV1/FVC values (r  =  0.54, p  =  0.01), and were able to distinguish between the groups (p  =  0.01). Lung heterogeneity was assessed through the spatial coefficient of variation (CV) of EIT difference images between key time points, and the CVs for EIT-derived FEV1 and FVC showed significant correlation with the CV for tidal breathing (r  =  0.47, p  =  0.01 and r  =  0.50, p  =  0.01, respectively). Global EIT-derived FEV1/FVC was better able to distinguish between groups than spirometry FEV1 (F-values 776.5 and 146.3, respectively, p  <  0.01.) The same held true for the CVs for EIT-derived FEV1, FVC, and tidal breathing (F-values 215.93, 193.89, 204.57, respectively, p  <  0.01). SIGNIFICANCE: The strong correlation between the CVs for tidal breathing, FEV1, and FVC, and the statistically significant ability of CV for tidal breathing to distinguish between healthy subjects and CF patients, and between the studied CF disease states suggests that the CV may be useful for measuring the extent and severity of structural lung disease.

Indexed as

Respiratory Function TestsTomographyAdolescentChildCystic FibrosisElectric ImpedanceFemaleGenotypeHumansMale

Identifiers

PMID29565263
PMCPMC5944864
OpenAlexW2791185866

What OpenQuestion holds

Textmetadata
LicenceTDM
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.