DYNAMICAL ANALYSIS OF DIASTOLIC HEART SOUNDS ASSOCIATED WITH CORONARY-ARTERY DISEASE

被引：150

作者：

PADMANABHAN, V

SEMMLOW, JL

机构：

[1] RUTGERS STATE UNIV,DEPT BIOMED ENGN,PISCATAWAY,NJ 08855

[2] UMDNJ,ROBERT WOOD JOHNSON MED SCH,DEPT SURG,NEW BRUNSWICK,NJ

来源：

ANNALS OF BIOMEDICAL ENGINEERING | 1994年 / 22卷 / 03期

关键词：

DIMENSION ANALYSIS; HEART SOUNDS; CORONARY ARTERY DISEASE; CHAOS ANALYSIS;

D O I：

10.1007/BF02368233

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In a new approach to noninvasively diagnose coronary artery disease (CAD), auditory correlates attributed to blood flow turbulence have been associated with stenosed coronary arteries. These auditory components have been detected in diseased subjects by spectral estimation of diastolic heart sound recordings made on the surface of the chest. In this study, we investigated the dynamics of the process that produces these sounds in diseased subjects by applying the techniques of dimensional analysis. Our results indicate a difference in the ''correlation dimension'' between heart sounds of diseased and normal subjects. In particular, diseased subjects show a fractal dimension, implying the presence of a strange attractor and the possible existence of low-dimensional chaos in sounds associated with coronary artery disease.

引用

页码：264 / 271

页数：8

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