Analytical, Diagnostic and Therapeutic Techniques, and Equipment [E] » Diagnosis [E01] » Diagnostic Techniques and Procedures » Diagnostic Techniques, Cardiovascular » Heart Function Tests » Heart Auscultation » Phonocardiography
Description
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. MeSH
Hierarchy View
Hierarchy Tree View
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