Evidence map›Paper›PMID 38248080›Full record

ArticleDiagnostics (Basel, Switzerland)2024

Ultrasound in the Diagnosis of Non-Expandable Lung: A Prospective Observational Study of M-Mode, B-Mode, and 2D-Shear Wave Elastography.

Jesper Koefod Petersen, Katrine Fjaellegaard, Daniel B Rasmussen, Gitte Alstrup, Asbjørn Høegholm, Jatinder Singh Sidhu, Pradeesh Sivapalan, Oke Gerke, Rahul Bhatnagar, Paul Frost Clementsen and 2 more

Open access · goldAbstract read
In one paragraph

Article in Diagnostics (Basel, Switzerland), 2024. 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
7.2field-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

14 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Review
  3. Advances in thoracic ultrasound.The European respiratory journal · 2026
    Article
  4. Review
  5. Review
  6. Ultrasound innovations in diaphragm assessment: an integrative review of expanding clinical applications.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Advanced imaging techniques and artificial intelligence in pleural diseases: a narrative review.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  11. Review
  12. A patient-centred approach to malignant pleural effusion.European clinical respiratory journal · 2025
    Review
  13. Article
  14. Review
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

12 authors at 4 institutions in 2 countries.

Jesper Koefod PetersenRespiratory Research Unit, Department of Internal and Respiratory Medicine, Zealand University Hospital, 4000 Roskilde, Denmark.ORCID 0000-0003-0275-9929
Katrine FjaellegaardRespiratory Research Unit, Department of Internal and Respiratory Medicine, Zealand University Hospital, 4000 Roskilde, Denmark.
Daniel B RasmussenRespiratory Research Unit, Department of Internal and Respiratory Medicine, Zealand University Hospital, 4000 Roskilde, Denmark.
Gitte AlstrupRespiratory Research Unit, Department of Internal and Respiratory Medicine, Zealand University Hospital, 4000 Roskilde, Denmark.
Asbjørn HøegholmRespiratory Research Unit, Department of Internal and Respiratory Medicine, Zealand University Hospital, 4000 Roskilde, Denmark.
Jatinder Singh SidhuRespiratory Research Unit, Department of Internal and Respiratory Medicine, Zealand University Hospital, 4000 Roskilde, Denmark.
Pradeesh SivapalanSection of Respiratory Medicine, Department of Medicine, Herlev and Gentofte Hospital, University of Copenhagen, 2900 Hellerup, Denmark.ORCID 0000-0002-8620-3655
Oke GerkeDepartment of Nuclear Medicine, Odense University Hospital, 5000 Odense, Denmark.ORCID 0000-0001-6335-3303
Rahul BhatnagarAcademic Respiratory Unit, University of Bristol, Bristol BS8 1TU, UK.
Paul Frost ClementsenCopenhagen Academy for Medical Education and Simulation (CAMES), University of Copenhagen and the Capital Region of Denmark, 2100 Copenhagen, Denmark.
Christian B LaursenDepartment of Respiratory Medicine, Odense University Hospital, 5000 Odense, Denmark.
Uffe BodtgerRespiratory Research Unit, Department of Internal and Respiratory Medicine, Zealand University Hospital, 4000 Roskilde, Denmark.ORCID 0000-0002-1231-9209
University of Southern Denmark · DKZealand University Hospital · DKUniversity of Copenhagen · DKUniversity of Bristol · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-expandable lung (NEL) has severe implications for patient symptoms and impaired lung function, as well as crucial implications for the management of malignant pleural effusion (MPE). Indwelling pleural catheters have shown good symptom relief for patients with NEL; hence, identifying patients early in their disease is vital. With the inability of the lung to achieve pleural apposition following thoracentesis and the formation of a hydropneumothorax, traditionally, chest X-ray and clinical symptoms have been used to make the diagnosis following thoracentesis. It is our aim to investigate whether ultrasound measurement of lung movement during respiration can predict NEL before thoracentesis, thereby aiding clinicians in their planning for the optimal treatment of affected patients.

methodsA total of 49 patients were consecutively included in a single-centre trial performed at a pleural clinic. Patients underwent protocolled ultrasound assessment pre-thoracentesis with measurements of lung and diaphragm movement and shear wave elastography measurements of the pleura and pleural effusion at the planned site of thoracentesis.

resultsM-mode measurements of lung movement provided the best diagnostic ROC-curve results, with an AUC of 0.81. Internal validity showed good results utilising the calibration belt test and Brier test.

conclusionM-mode measurement of lung movement shows promise in diagnosing NEL before thoracentesis in patients with known or suspected MPE. A validation cohort is needed to confirm the results.

Indexed as

diagnostic testindwelling pleural catheternon-expandable lungthoracic ultrasound

Identifiers

PMID38248080
PMCPMC10813923
OpenAlexW4390972918

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.