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

Vectorcardiographic bites. A method for detection and quantification applied on a normal material.

L Edenbrandt1, A Ek, B Lundh

  • 1Department of Clinical Physiology, University of Lund, Sweden.

Journal of Electrocardiology
|October 1, 1989
PubMed
Summary
This summary is machine-generated.

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

Hand-arm vibration: Swedish carpenters' perceptions of health and safety management.

Occupational medicine (Oxford, England)·2023
Same author

Explaining the complex impact of the Covid-19 pandemic on children with overweight and obesity: a comparative ecological analysis of parents' perceptions in three countries.

BMC public health·2022
Same author

How do young children eat after an obesity intervention? Validation of the Child Eating Behaviour Questionnaire using the Rasch Model in diverse samples from Australia and Sweden.

Appetite·2021
Same author

Why complicate an important task? An orderly display of the limb leads in the 12-lead electrocardiogram and its implications for recognition of acute coronary syndrome.

BMC cardiovascular disorders·2019
Same author

Serum periostin relates to type-2 inflammation and lung function in asthma: Data from the large population-based cohort Swedish GA(2)LEN.

Allergy·2017
Same author

From a reactive to a proactive safety approach. Analysis of medication errors in chemotherapy using general failure types.

European journal of cancer care·2015
Same journal

Systematic multi-domain screening of lead-specific electrocardiographic features associated with sudden cardiac death.

Journal of electrocardiology·2026
Same journal

The need to measure electrical synchrony - Assessment of electrical synchrony and its utility. Synchromax in real life.

Journal of electrocardiology·2026
Same journal

An assessment of intern doctors' experiences of undergraduate education in electrocardiogram interpretation.

Journal of electrocardiology·2026
Same journal

Feasibility and efficacy of left bundle branch area pacing guided by modified chest lead 1.

Journal of electrocardiology·2026
Same journal

Spatial proximity or vector orientation? Re-evaluating ECG interpretation in anterior myocardial infarction using cardiac magnetic resonance.

Journal of electrocardiology·2026
Same journal

Pacing spikes without visible QRS complexes: Failure to capture?

Journal of electrocardiology·2026
See all related articles

This study introduces an algorithm to detect and quantify vectorcardiographic bites, which may indicate myocardial damage. The new method improves specificity for identifying abnormal bites compared to existing criteria.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Biomedical Engineering

Background:

  • Vectorcardiographic bites are linked to myocardial fibrosis or necrosis.
  • Clear definitions and normal limits for bites remain unestablished.
  • Accurate detection of bites is crucial for diagnosing cardiac conditions.

Purpose of the Study:

  • To develop and validate an algorithm for computer-assisted detection and quantification of vectorcardiographic bites.
  • To establish normal limits for bites using a defined normal population.
  • To compare the specificity of new criteria against commonly used criteria for abnormal bites.

Main Methods:

  • An algorithm was developed to detect QRS loop sectors rotating in opposition to the main loop.
  • Iterative procedures were used for bite delineation and calculation of amplitude, duration, and area.

Related Experiment Videos

  • The algorithm was applied to normal cardiac data to derive normal bite limits.

    • Main Results:

    • A novel algorithm for detecting and quantifying vectorcardiographic bites was successfully developed.
    • The commonly used criterion (amplitude ≥ 0.1 mV, duration ≥ 10 msec) yielded 87% specificity.
    • A new criterion (bite amplitude > 0.15 mV in horizontal or sagittal plane) achieved 95% specificity.

    Conclusions:

    • The developed algorithm provides a reliable method for vectorcardiographic bite analysis.
    • The proposed criterion significantly enhances diagnostic specificity for abnormal bites.
    • This advancement aids in the objective assessment of myocardial conditions potentially indicated by bites.