Evidence map›Paper›PMID 34749444›Full record

ArticleUltrasonography (Seoul, Korea)2022

Speckle tracking ultrasonography as a new tool to assess diaphragmatic function: a feasibility study.

Sebastian Johannes Fritsch, Nima Hatam, Andreas Goetzenich, Gernot Marx, Rüdiger Autschbach, Leo Heunks, Johannes Bickenbach, Christian Simon Bruells

Open access · diamondAbstract read
In one paragraph

Article in Ultrasonography (Seoul, Korea), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. 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
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Observational
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

8 authors at 2 institutions in 2 countries.

Sebastian Johannes FritschDepartment of Intensive Care Medicine, University Hospital RWTH Aachen, Aachen, Germany.
Nima HatamDepartment of Thoracic and Cardio-Vascular Surgery, University Hospital RWTH Aachen, Aachen, Germany.
Andreas GoetzenichDepartment of Thoracic and Cardio-Vascular Surgery, University Hospital RWTH Aachen, Aachen, Germany.
Gernot MarxDepartment of Intensive Care Medicine, University Hospital RWTH Aachen, Aachen, Germany.
Rüdiger AutschbachDepartment of Thoracic and Cardio-Vascular Surgery, University Hospital RWTH Aachen, Aachen, Germany.
Leo HeunksDepartment of Intensive Care Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
Johannes BickenbachDepartment of Intensive Care Medicine, University Hospital RWTH Aachen, Aachen, Germany.
Christian Simon BruellsDepartment of Anesthesiology, University Hospital RWTH Aachen, Aachen, Germany.
RWTH Aachen University · DEAmsterdam University Medical Centers · NL

Funding

GE Healthcare
6 · The paper itself

Abstract

A reliable method of measuring diaphragmatic function at the bedside is still lacking. Widely used two-dimensional (2D) ultrasonographic measurements, such as diaphragm excursion, diaphragm thickness, and fractional thickening (FT) have failed to show clear correlations with diaphragmatic function. A reason for this is that 2D ultrasonographic measurements, like FT, are merely able to measure the deformation of muscular diaphragmatic tissue in the transverse direction, while longitudinal measurements in the direction of contracting muscle fibres are not possible. Speckle tracking ultrasonography, which is widely used in cardiac imaging, overcomes this disadvantage and allows observations of movement in the direction of the contracting muscle fibres, approximating muscle deformation and the deformation velocity. Several studies have evaluated speckle tracking as a promising method to assess diaphragm contractility in healthy subjects. This technical note demonstrates the feasibility of speckle tracking ultrasonography of the diaphragm in a group of 20 patients after an aortocoronary bypass graft procedure. The results presented herein suggest that speckle tracking ultrasonography is able to depict alterations in diaphragmatic function after surgery better than 2D ultrasonographic measurements.

Indexed as

DiaphragmFractional thickeningSpeckle tracking ultrasoundUltrasonography

Identifiers

PMID34749444
PMCPMC8942740
OpenAlexW3195473174

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.