Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Cardiac video analysis using Hodge-Helmholtz field decomposition.

Qinghong Guo1, Mrinal K Mandal, Gang Liu

  • 1Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4.

Computers in Biology and Medicine
|December 6, 2005
PubMed
Summary

Detecting critical points in cardiac electrical activity aids tachycardia understanding and therapy. This study introduces a novel four-stage approach for accurate critical point detection in cardiac optical data.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Effects of Pa-pex 11 gene on penicillin production in Penicillium aurantiogriseum].

Wei sheng wu xue bao = Acta microbiologica Sinica·2010
Same author

Danggui-Shaoyao-San and its active fraction JD-30 improve Abeta-induced spatial recognition deficits in mice.

Journal of ethnopharmacology·2010
Same author

Inhibition of lung fluid clearance and epithelial Na+ channels by chlorine, hypochlorous acid, and chloramines.

The Journal of biological chemistry·2010
Same author

Discovery and optimization of novel 3-piperazinylcoumarin antagonist of chemokine-like factor 1 with oral antiasthma activity in mice.

Journal of medicinal chemistry·2010
Same author

Evidence for dimeric BACE-mediated APP processing.

Biochemical and biophysical research communications·2010
Same author

Involvement of mineralocorticoid receptor in high glucose-induced big mitogen-activated protein kinase 1 activation and mesangial cell proliferation.

Journal of hypertension·2010

Area of Science:

  • Biomedical Engineering
  • Computational Biology
  • Cardiac Electrophysiology

Background:

  • Critical points (phase singularities) in the heart indicate pathological changes and are key to analyzing cardiac electrical activity dynamics.
  • Accurate detection of critical points is crucial for understanding tachycardia and developing effective therapeutic strategies.

Purpose of the Study:

  • To propose a novel, accurate, and robust approach for detecting critical points in cardiac optical data.
  • To analyze cardiac electrical activity dynamics by identifying sources, sinks, and rotational centers.

Main Methods:

  • Image smoothing using anisotropic diffusion equation to reduce noise in cardiac optical data.
  • Estimation of cardiac electrical conduction velocity fields from consecutive smoothed images.

Related Experiment Videos

  • Application of discrete Hodge-Helmholtz motion decomposition to extract potential surfaces.
  • Hierarchical searching of potential surface extrema for accurate critical point localization.

    • Main Results:

    • The proposed four-stage approach successfully detects critical points in cardiac optical data.
    • The method demonstrates satisfactory performance, particularly for cardiac electrical patterns exhibiting simple propagation.
    • Accurate identification of sources, sinks, and rotational centers was achieved.

    Conclusions:

    • The novel approach provides a reliable method for critical point detection in cardiac electrophysiology.
    • This technique can enhance the understanding of cardiac electrical dynamics and inform tachycardia therapies.
    • The motion decomposition and potential surface analysis offer a powerful tool for analyzing complex biological systems.