Title
High Frequency QRS Analysis From Orthogonal Leads
Abstract
We analysed high frequency averaged QRS (HFQRS) in orthogonal leads and different passbands. Three groups of subjects were compared: healthy subjects, ischemic heart disease (IHD) and dilated cardiomyopathy (DCM) patients. Among the IHD group, those with heart failure (HF) symptoms were identified. Investigated parameters included HFQRS maximal amplitude, HFQRS power, and HFQRS fragmentation based on normalized length of the HFQRS line. The study aimed at assessing (1) group differences in relation to the passband, lead, and parameter, and (2) the reproducibility of parameters. Results: Significant differences were found between healthy subjects and IHD or DCM in all parameters and passbands. Some singularities of significance existed between IHD and DCM. Significant differences were also found between IHD sub-groups with and without HF symptoms, and these existed over more frequency bands. Conclusion: HFQRS parameters are frequency dependent and this dependency should be tested to eliminate singularities in statistical significances. Differences between groups with or without HF symptoms were found mainly at higher passbands, regardless of deterioration of reproducibility. Lead X appeared to be the lead with maximal differences between groups.
Year
DOI
Venue
2018
10.22489/CinC.2018.051
2018 Computing in Cardiology Conference (CinC)
Keywords
Field
DocType
orthogonal leads,IHD group,heart failure symptoms,HFQRS maximal amplitude,HFQRS power,HFQRS fragmentation,HFQRS line,singularities,HF symptoms,frequency bands,HFQRS parameters,high-frequency QRS analysis
Dilated cardiomyopathy,Reproducibility,Heart failure,Internal medicine,Cardiology,QRS complex,Medicine,High Frequency QRS,Heart disease
Conference
Volume
ISSN
ISBN
45
2325-8861
978-1-7281-0924-4
Citations 
PageRank 
References 
0
0.34
0
Authors
8
Name
Order
Citations
PageRank
Halamek, J.139.72
P Leinveber257.17
Marek Malik34616.29
Georg Schmidt442.07
Plesinger, F.538.70
magdalena matejkova603.38
Jolana Lipoldova702.03
Pavel Jurák8512.45