The Attenuation of QRS Power in the Frequency Range 0.05 to 1 kHz
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F17%3A00075908" target="_blank" >RIV/00159816:_____/17:00075908 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.22489/CinC.2017.096-110" target="_blank" >http://dx.doi.org/10.22489/CinC.2017.096-110</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22489/CinC.2017.096-110" target="_blank" >10.22489/CinC.2017.096-110</a>
Alternative languages
Result language
angličtina
Original language name
The Attenuation of QRS Power in the Frequency Range 0.05 to 1 kHz
Original language description
The high-frequency QRS (HFQRS) signal was analyzed in four groups of subjects: healthy, patients suffering from coronary artery disease, heart transplanted patients and patients with left bundle branch block (LBBB). Subjects were measured in the supine position with a high-quality ECG system (fs=5 kHz, ADC 24 bits). The dependency of HFQRS power, maximal amplitude and HFQRS width on the passband used was analyzed. Results: The dependency between HFQRS power and frequency in logarithmic scales is nearly linear across all groups. Significant differences exist in HFQRS power attenuation in regard to frequency between groups of subjects, P<0.001. This attenuation is maximal in healthy subjects -48.1 +/- 3.7 [dB per decade], minimal in LBBB -40.2 +/- 2.7. Based on significant differences between healthy and patient groups, we assume that QRS power attenuation may represent new information in ECG analysis. This parameter is independent of the choice of the analyzed frequency band. The dependency of HFQRS shape on frequency is presented by analysis of a healthy subject. Explanation of this significant dependency is a task for the future.
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
30201 - Cardiac and Cardiovascular systems
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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
2017 COMPUTING IN CARDIOLOGY (CINC)
ISBN
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ISSN
2325-8861
e-ISSN
2325-887X
Number of pages
4
Pages from-to
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Publisher name
IEEE COMPUTER SOC
Place of publication
LOS ALAMITOS
Event location
Rennes
Event date
Sep 24, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000450651100082