Title: Visualisation of heart sounds and motion using multi-channel sensor

Authors: Fumio Nogata, Yasunari Yokota, Yoko Kawamura

Addresses: Department of Human and Information Systems, Gifu University, Gifu, 1-1 Yanagi-do, Gifu, 501-1193, Japan. ' Department of Information Science, Gifu University, Gifu, 1-1 Yanagi-do, Gifu, 501-1193, Japan. ' Department of Information Science, Gifu University, Gifu, 1-1 Yanagi-do, Gifu, 501-1193, Japan

Abstract: As there are various difficulties associated with auscultation techniques, we have devised two techniques for visualising heart sound and motion to assist in the understanding of heartbeat for both doctors and patients that: 1) auscultatory sound was visualised by both FFT-image and wavelet-image in order to find abnormal heart sound; 2) a new technique for visualisation was established to show global and simultaneous heart motions. To overcome difficulties in auscultation, these techniques can be applied to the detection of heart disease and to the digital database management of the auscultation examination.

Keywords: auscultation; sound visualisation; electronic charts; heart sounds; heart disease diagnosis; ECG; heart motion; chest vibration; multi-channel sensors; FFT; wavelets transform; medical device; device monitoring; surgery; fast Fourier transform; electrocardiograms; heartbeat; cardiovascular disease.

DOI: 10.1504/IJBBR.2011.040034

International Journal of Biomechatronics and Biomedical Robotics, 2011 Vol.1 No.3, pp.160 - 164

Published online: 12 May 2011 *

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