title: [Echo-Doppler study of musical heart murmurs].
abstract: The origin of systolic or diastolic musical murmurs was investigated by means of echo-doppler examination in 51 patients with various cardiac diseases. In all cases a typical doppler spectrum was identified, showing bi-directional clusters of frequencies which were concentric in systole and parallel in diastole. The doppler audio signal was musical. A similar echo-doppler signal was obtained by a diapason vibrating in isotonic solution. These data allowed us to identify the site of the vibrating cardiac structure causing the typical echo-doppler spectrum and characteristic audio signal.
authors.affiliation: Servizio di Poligrafia e Cardiodiagnostica Incruenta, Ospedale S. Camillo, Roma.
authors.forename: L
authors.initials: L
authors.lastname: Boccardi
authors.forename: F
authors.initials: F
authors.lastname: Pennestrì
authors.forename: G
authors.initials: G
authors.lastname: Minardi
authors.forename: M
authors.initials: M
authors.lastname: Di Segni
authors.forename: E
authors.initials: E
authors.lastname: Pucci
authors.forename: L M
authors.initials: LM
authors.lastname: Biasucci
authors.forename: F
authors.initials: F
authors.lastname: Loperfido
authors.forename: O
authors.initials: O
authors.lastname: Ferrari
authors.forename: E
authors.initials: E
authors.lastname: Giovannini
mesh_terms: D004452:Echocardiography / Q000379:methods; D006326:Heart Auscultation; D006337:Heart Murmurs; D006349:Heart Valve Diseases / Q000175:diagnosis*; D006801:Humans; D009146:Music; D010701:Phonocardiography
vernacular_title: Studio eco-Doppler dei rumori cardiaci musicali.