Phonocardiogram, apex cardiogram and electrocardiogram are illustrated from above downward. The major component of the first heart sound is delayed, as is characteristic of mitral stenosis ...

The phonocardiogram was tested as a measure of severity of mitral stenosis in 37 patients. The first sound was found to be delayed in comparison to that in 121 normal subjects.

The effects of pressure wave reflection have been incompletely described by the central augmentation index (cAI) and augmented pressure (Pa). We therefore investigated the determinants of ...

The heart sound data was part of a publicly available heart sound dataset called CirCor DigiScope Phonocardiogram. Apple split the heart sound data into short clips of approximately 5 seconds each ...