DocumentCode
1340658
Title
Studying the significance of cardiac contractility variability
Author
Xiao, Shouzhong ; Cai, Shaoxi ; Liu, Guochuan
Author_Institution
Coll. of Bioeng., Chongqing Univ., China
Volume
19
Issue
3
fYear
2000
Firstpage
102
Lastpage
105
Abstract
Based on the relationship between the amplitude of the first heart sound (S1) and the cardiac contractility, we propose a concept of cardiac contractility variability (CCV) and a method of analysis. This study was carried out to examine the regularity of the amplitude variability of the first heart sound and to evaluate the practical significance of the CCV. This article considers only three factors: respiration, exercise, and psychological activity. Other factors influencing cardiac contractility are left for further study
Keywords
acoustic signal processing; bioacoustics; cardiovascular system; diseases; medical signal processing; pneumodynamics; amplitude; amplitude variability; cardiac contractility variability; cardiovascular diseases; exercise; first heart sound; method of analysis; phonocardiogram; psychological activity; respiration; Biomedical engineering; Cardiology; Cardiovascular diseases; Heart rate; Human factors; Protocols; Psychology; Statistical analysis; Testing; Thyristors;
fLanguage
English
Journal_Title
Engineering in Medicine and Biology Magazine, IEEE
Publisher
ieee
ISSN
0739-5175
Type
jour
DOI
10.1109/51.844388
Filename
844388
Link To Document