Phonocardiography

Graphic registration of the heart sounds picked up as vibrations and transformed by a piezoelectric crystal microphone into a varying electrical output according to the stresses imposed by the sound waves. The electrical output is amplified by a stethograph amplifier and recorded by a device incorporated into the electrocardiograph or by a multichannel recording machine.

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Tree Number(s): E01.370.370.380.400.500

MeSH Unique ID: D010701

Entry Terms:

• Phonocardiographies

All MeSH Categories
Analytical, Diagnostic and Therapeutic Techniques and Equipment Category
Diagnosis
Diagnostic Techniques and Procedures
Diagnostic Techniques, Cardiovascular
Heart Function Tests
Heart Auscultation
Phonocardiography