Evidence map›Paper›PMID 34732573›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Ultrafast four-dimensional imaging of cardiac mechanical wave propagation with sparse optoacoustic sensing.

Çağla Özsoy, Ali Özbek, Michael Reiss, Xosé Luís Deán-Ben, Daniel Razansky

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.6field-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

25 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Optoacoustic muscle imaging.Journal of neuromuscular diseases · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. All-optical optoacoustics for clinical diagnostics.Nature biomedical engineering · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

5 authors at 1 institution in 1 country.

Çağla ÖzsoyInstitute of Pharmacology and Toxicology, Faculty of Medicine, University of Zürich, Zürich 8057, Switzerland.ORCID 0000-0002-5620-4796
Ali ÖzbekInstitute of Pharmacology and Toxicology, Faculty of Medicine, University of Zürich, Zürich 8057, Switzerland.
Michael ReissInstitute of Pharmacology and Toxicology, Faculty of Medicine, University of Zürich, Zürich 8057, Switzerland.
Xosé Luís Deán-BenInstitute of Pharmacology and Toxicology, Faculty of Medicine, University of Zürich, Zürich 8057, Switzerland.
Daniel RazanskyInstitute of Pharmacology and Toxicology, Faculty of Medicine, University of Zürich, Zürich 8057, Switzerland; daniel.razansky@uzh.ch.
University of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Propagation of electromechanical waves in excitable heart muscles follows complex spatiotemporal patterns holding the key to understanding life-threatening arrhythmias and other cardiac conditions. Accurate volumetric mapping of cardiac wave propagation is currently hampered by fast heart motion, particularly in small model organisms. Here we demonstrate that ultrafast four-dimensional imaging of cardiac mechanical wave propagation in entire beating murine heart can be accomplished by sparse optoacoustic sensing with high contrast, ∼115-µm spatial and submillisecond temporal resolution. We extract accurate dispersion and phase velocity maps of the cardiac waves and reveal vortex-like patterns associated with mechanical phase singularities that occur during arrhythmic events induced via burst ventricular electric stimulation. The newly introduced cardiac mapping approach is a bold step toward deciphering the complex mechanisms underlying cardiac arrhythmias and enabling precise therapeutic interventions.

Indexed as

Cardiac Imaging TechniquesFour-Dimensional Computed TomographyPhotoacoustic TechniquesAnimalsArrhythmias, CardiacFemaleHeartIsolated Heart PreparationMiceimaging ultrafast phenomenaLangendorffoptoacoustic tomographyphotoacousticsultrafast volumetric imaging

Identifiers

PMID34732573
PMCPMC8609330
OpenAlexW3208837797

What OpenQuestion holds

Textmetadata
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.