phonocardiography


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phonocardiography

 [fo″no-kahr″de-og´rah-fe]
the graphic recording of heart sounds and murmurs; by extension, the term includes pulse tracings (carotid, apex, and venous pulse). adj., adj phonocardiograph´ic.

Phonocardiography involves picking up, through a highly sensitive microphone, sonic vibrations from the heart which are then converted into electrical energy and fed into a galvanometer, where they are recorded on paper. The procedure is most useful when there is evidence of heart murmurs or unusual heart sounds, such as gallops, that are difficult to discern by the human ear.

pho·no·car·di·og·ra·phy

(fō'nō-kar'dē-og'ră-fē),
1. Recording of the heart sounds with a phonocardiograph.
2. The science of interpreting phonocardiograms.
[phono- + G. kardia, heart, + graphō, to record]

phonocardiography

Echophonocardiography Cardiology A non-invasive technique that amplifies faint, low frequency sounds of blood flowing through the heart and great vessels, displaying them graphically; PCG encompasses carotid, apex, and venous pulse tracings Applications Diagnose heart valve defects, ventricular hypertrophy, left heart failure; PCG is usually performed in synchrony with EKG, and M-mode echocadiography or Doppler echocardiography, to match changes heard by PCG with the point at which they occur in the heart beat

pho·no·car·di·og·ra·phy

(fō'nō-kahr'dē-og'ră-fē)
1. Recording of the heart sounds with a phonocardiograph.
2. The science of interpreting phonocardiograms.
[phono- + G. kardia, heart, + graphō, to record]
References in periodicals archive ?
Gangopadhyay, "Time-frequency characterization of fetal phonocardiography signals using wavelet scalogram," Journal of Mechanics in Medicine and Biology, vol.
Hosszu, "Extended noninvasive fetal monitoring by detailed analysis of data measured with phonocardiography," IEEE Transactions on Biomedical Engineering, vol.
Fratini, "An algorithm for FHR estimation from foetal phonocardiography signals," Biomedical Signal Processing and Control, vol.
Hein, "An advanced method in fetal phonocardiography," Computer Methods and Programs in Biomedicine, vol.
Shue, "A portable phonocardiography fetal heart rate monitor," in Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS '06), May 2006.
Tan, "A non-invasive PC-based measurement of fetal phonocardiography," Sensors and Actuators A: Physical, vol.
Pena, "On-line fetal heart rate monitor by Phonocardiography," in Proceedings of the 25th Annual International Conference of the IEEE EMBS, pp.
Hosszu, "Extended non-invasive fetal monitoring by detailed analysis of data measured with phonocardiography," IEEE Transactions on Biomedical Engineering, vol.
Zadgaonkar, "System simulation and comparative analysis of foetal heart sound de-noising techniques for advanced phonocardiography," International Journal of Biomedical Engineering and Technology, vol.
Moghavvemi, "Real time analysis of fetal phonocardiography," in Proceedings of the TENCON Proceedings, vol.
Tiwari, "Development of a signal simulation module for testing of phonocardiography based pre natal monitoring systems," in Proceedings of the IEEE India Council Conference (INDICON '09), pp.
Phonoechocardiography and intracardiac phonocardiography in hypertrophic cardiomyopathy.