Title :
A method for studying the effects of PR and RR intervals on heart sound power spectra
Author :
Durand, L.-G. ; Langlois, Y.E. ; Cloutier, G. ; Chiarella, R. ; Lanthier, T. ; Bertrand-Bradley, S.
Author_Institution :
Biomed. Eng. Lab., Clinical Res. Inst. of Montreal, Que., Canada
Abstract :
In the course of exploring the potential of spectral analysis of valve closing sounds for the detection of valvular degeneration, a method was developed for determining, in a dog, the influence of PR interval (PRI) and heart rate (HR) on the spectra of intracardiac and thoracic first and second heart sounds. Preliminary results emphasize the strong dependence of the first heart sound spectra on the PRI and cardiac rhythm. On the contrary, the aortic valve closing sound seems to be relatively independent of these timing parameters. It is believed that the information obtained by applying this method to a larger group of animals will help in defining the relationship between the spectral changes of the valve sound spectra and hemodynamic parameters such as the PRI and HR.<>
Keywords :
bioacoustics; cardiology; patient diagnosis; dog; heart rate; heart sound power spectra; hemodynamic parameters; timing parameters; valve closing sounds; valvular degeneration detection;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94494
