Electrocardiographic Signal Broadband Properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F24%3A00645722" target="_blank" >RIV/68081731:_____/24:00645722 - isvavai.cz</a>
Result on the web
<a href="https://cinc.org/archives/2024/pdf/CinC2024-228.pdf" target="_blank" >https://cinc.org/archives/2024/pdf/CinC2024-228.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22489/CinC.2024.228" target="_blank" >10.22489/CinC.2024.228</a>
Alternative languages
Result language
angličtina
Original language name
Electrocardiographic Signal Broadband Properties
Original language description
Background: Low, high, and ultra-high-frequency ECGs measure ventricular activation differently. However, their principles and properties have not yet been studied systematically. Method: 5 kHz ECG resting recordings were acquired in 134 subjects. We used an extended 12-lead ECG setup with 6 (V1-V6)+6 extended precordial leads. We measured the distance of all precordial leads to the ventricular geometrical center with the magnetic resonance images. We determined the amplitude of frequency components for each lead by computing the area of the averaged amplitude envelopes during the QRS complex. We used five frequency bands: LF (0.2-20 Hz), MF (20-80 Hz), HF (80-300 Hz), UHF1 (300-500 Hz), and UHF2 (800-1.000 Hz). Results: The relative amplitude decreases with relative distance from the myocardial depolarization source and significantly differs in frequencies. The decay coefficient in the LF band is more than two times lower than the UHF2 band coefficient. All differences between frequencies are significant p<0.005. Conclusion: Lower frequencies are more sensitive to distant areas, and higher frequencies are more sensitive to near regions. Combining multiple frequency bands has the potential to localize activation sources more precisely.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20601 - Medical engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Computing in Cardiology 2024 (CinC 2024)
ISBN
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ISSN
2325-887X
e-ISSN
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Number of pages
4
Pages from-to
228
Publisher name
Computing in Cardiology
Place of publication
Neuveden
Event location
Karlsruhe
Event date
Nov 8, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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