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1 2013

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Imaging of the heart with phonocardiography

Sochocka A., Kawa T., Kopański K., Kujdowicz M., Lasko P., Micek S., Płaneta R., Smoleń M., Sosin Z., Sobczyk D.

Bio-Algorithms and Med-Systems

2013

Vol. 9, no. 2

59--64

This paper focuses on techniques of phonocardiographic image registration. Simultaneous measurements of sound wave amplitudes from above the chest of a healthy person were performed by means of piezoelectric microphones. The location of the source of sound waves can be determined by implementing the size of the amplitudes. Sound source changes its position in time and moves the wheel tracks covering the entire heart or accumulate in some places. A comparison of the results of heart auscultation with an image received by echocardiography was possible due to the fact that the collected phonocardiographic measurements and echocardiographic examination were obtained with ECG sampling. The occurrence of the specific events from the heart auscultation was attributed to their genesis mechanism.