Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society 1988
DOI: 10.1109/iembs.1988.94494
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A method for studying the effects of PR and RR intervals on heart sound power spectra

Abstract: Models of valve sound production [1][2] and cl inical studies [3][4][5][6][7][8] have demon strated that the natural modes of reso nance of biological heart valves increase with calcium deposit and stiffening of the valve leaflets.In the course of ex ploring the potential of spectral analy sis of valve closing sounds for the de tection of valvular degeneration, a method was developed for determining, in dog, the influence of PR interval (PRI) and heart rate (HR) on the spectra of intracardiac and thoracic firs… Show more

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