Title :
Development of a cardiac acoustic mapping system
Author :
Cozic, M. ; Durand, L.-G. ; Guardo, R.
Author_Institution :
Lab. of Biomed. Eng., Clinical Res. Inst. of Montreal, Que., Canada
Abstract :
Describes a computer-based system for simultaneously recording the amplitude of precordial vibrations (PCG) from 22 sites on the chest. This system is the first prototype of a cardiac acoustic mapping system designed to acquire, analyze, and display the amplitude maps of the PCG in real-time. Preliminary results show that thoracic mapping of the PCG can provide a means of locating the source of cardiac sounds and murmurs on the chest and to characterize their radiation and propagation patterns
Keywords :
acoustic signal processing; bioacoustics; biomedical equipment; biomedical measurement; cardiology; computerised instrumentation; medical signal processing; vibration measurement; amplitude maps; cardiac acoustic mapping system development; cardiac sounds; computer-based system; heart valves diagnosis; medical instrumentation; murmurs; phonocardiography; precordial vibrations amplitude recording; propagation patterns; Biomedical engineering; Circuits; Clocks; Data acquisition; Data mining; Envelope detectors; Frequency; Heart; Microphones; Sampling methods;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579451
