Document Detail


Time-frequency distribution of heart rate variability below 0.05 Hz by Wigner-Ville spectral analysis in congestive heart failure patients.
MedLine Citation:
PMID:  9394906     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The Wigner-Ville spectral analysis was utilized to demonstrate a high-resolution time-frequency distribution of heart rate variability below 0.05 Hz. There are different time-frequency characteristics between the normal subject and the patient with severe congestive heart failure. The former consists of multiple and broad-band spectral peaks, while the latter presents unique spectral peaks. Based on Bayes theory, a classifier for the unique spectral peaks was developed. After the beneficial improvement with low-dose beta-blockers, the unique spectral peaks had disappeared or the time of occurrence was reduced in most patients.
Authors:
H L Chan; J L Lin; C C Du; C P Wu
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Medical engineering & physics     Volume:  19     ISSN:  1350-4533     ISO Abbreviation:  Med Eng Phys     Publication Date:  1997 Sep 
Date Detail:
Created Date:  1998-01-02     Completed Date:  1998-01-02     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9422753     Medline TA:  Med Eng Phys     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  581-7     Citation Subset:  IM    
Affiliation:
Department of Electrical Engineering, National Taiwan University, Taipei, Republic of China.
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MeSH Terms
Descriptor/Qualifier:
Adrenergic beta-Antagonists / therapeutic use
Bayes Theorem
Cheyne-Stokes Respiration / classification,  diagnosis,  physiopathology
Chronic Disease
Electrocardiography, Ambulatory / instrumentation,  methods*,  statistics & numerical data
Fourier Analysis
Heart Failure / diagnosis*,  drug therapy,  physiopathology
Heart Rate*
Humans
Middle Aged
Signal Processing, Computer-Assisted* / instrumentation
Time Factors
Chemical
Reg. No./Substance:
0/Adrenergic beta-Antagonists

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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