Evidence map›Paper›PMID 39805822›Full record

Trial reportNature communications2025

Early screening of lung function by electrical impedance tomography in people with normal spirometry reveals unrecognized pathological features.

Shuoyao Qu, Enzhi Feng, Daihan Dong, Lin Yang, Meng Dai, Inéz Frerichs, Shaojie Liu, Yi Gao, Jinping Zheng, Liqiang Song and 1 more

Abstract readClinical Trial
In one paragraph

Trial report in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. [Research on electrical impedance tomography for pediatric pneumonia based on an improved radial basis function neural network].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. 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

11 authors.

Shuoyao Qu *Department of Pulmonary and Critical Care Medicine, Xijing Hospital, Air Force Medical University, Xi'an, China.
Enzhi Feng *No. 941 Hospital of the Joint Support Force of People's Liberation Army (PLA), Xining, China.
Daihan Dong *Department of Pulmonary and Critical Care Medicine, Xijing Hospital, Air Force Medical University, Xi'an, China.
Lin YangDepartment of Aerospace Medicine, Air Force Medical University, Xi'an, China. yanglin.0601@163.com.ORCID http://orcid.org/0000-0003-1641-2926
Meng DaiDepartment of Biomedical Engineering, Air Force Medical University, Xi'an, China.
Inéz FrerichsDepartment of Anesthesiology and Intensive Care Medicine, University Medical Center of Schleswig-Holstein Campus Kiel, Kiel, Germany.
Shaojie LiuNo. 941 Hospital of the Joint Support Force of People's Liberation Army (PLA), Xining, China.
Yi GaoDepartment of Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Jinping ZhengDepartment of Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.ORCID http://orcid.org/0000-0002-7511-661X
Liqiang SongDepartment of Pulmonary and Critical Care Medicine, Xijing Hospital, Air Force Medical University, Xi'an, China. songlq@fmmu.edu.cn.ORCID http://orcid.org/0000-0002-9808-6679
Zhanqi ZhaoDepartment of Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China. zhanqizhao@gzhmu.edu.cn.ORCID http://orcid.org/0000-0002-1279-2207

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Early detection of lung function impairment is crucial. However, the sensitivity of spirometry in detecting early lung function deterioration is limited. In this study, lungs of 3180 healthy participants scheduled for annual health check were screened. Electrical impedance tomography measurements were conducted in 130 participants with normal spirometry for concept establishment phase and 105 for validation phase. A follow-up CT examination was suggested for participants with abnormal regional time constant or tobacco consumption ≥10 pack-years. Using CT as reference, the sensitivity and specificity of electrical impedance tomography-based screening were 81.3% and 50.0%, respectively in the concept establishment phase. In the validation phase, the sensitivity and specificity were 77.9% and 50.0%. In this study we show that conventional spirometry may not capture early changes that occur at a regional level. The regional time constant based on electrical impedance tomography can be a promising tool for early screening of lung function impairment. Clinical trial registration: ChiCTR2300076673, www.chictr.org.cn .

Indexed as

Electric ImpedanceLungSpirometryTomographyAdultAgedEarly DiagnosisFemaleHumansMaleMass ScreeningMiddle AgedRespiratory Function TestsSensitivity and SpecificityTomography, X-Ray Computed

Identifiers

PMID39805822
PMCPMC11731049

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.