THE PHONOCARDIOGRAPHY OF HEART MURMURS PART II. CLINICAL RESULTS AND DISCUSSION

A color spectrographic phonocardiography (CSP) applied to the detection and characterization of heart murmurs: preliminary results

BACKGROUND Although cardiac auscultation remains important to detect abnormal sounds and murmurs indicative of cardiac pathology, the application of electronic methods remains seldom used in everyday clinical practice. In this report we provide preliminary data showing how the phonocardiogram can be analyzed using color spectrographic techniques and discuss how such information may be of future...

Digital Subtraction Phonocardiography (DSP) applied to the detection and characterization of heart murmurs

BACKGROUND During the cardiac cycle, the heart normally produces repeatable physiological sounds. However, under pathologic conditions, such as with heart valve stenosis or a ventricular septal defect, blood flow turbulence leads to the production of additional sounds, called murmurs. Murmurs are random in nature, while the underlying heart sounds are not (being deterministic). INNOVATION We ...

Heart murmurs.

Heart murmurs.

to this article. Introduction Heart murmurs are heard commonly in infants, children, and adolescents. Approximately 50% to 70% of individuals seen for school or sports preparticipation examinations have a heart murmur. Indeed, a murmur is heard in most children at one or more of their examinations. Because most murmurs are innocent (ie, normal), it is important to differentiate those that are a...

Heart Sounds and Murmurs

In this little pocket-book of 60 Pa.^?' a_ student will find a good deal of usefu tiou put simply and clearly. The text is illustrated with diagrams, showing the characteristics of the murmurs as to time, length and roughness. The book may easily be used for clinical reference and should prove of value to the beginners in acquiring the elements of cardiac ascultation. Many valuable hints are in...