[Significance of apical systolic murmurs. Phonocardiographic study and diagnostic criteria].
1968
G Cinotti, and
F Pentimone, and
A Pesola, and
C Giusti
UI
MeSH Term
Description
Entries
D010701
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.
Phonocardiographies
D006349
Heart Valve Diseases
Pathological conditions involving any of the various HEART VALVES and the associated structures (PAPILLARY MUSCLES and CHORDAE TENDINEAE).