Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative phonocardiograms of AI diagnosis compared to face-to-face auscultation. (A) Representative phonocardiogram of a VSD patient. (B) Representative phonocardiogram of a MR patient. Each phonocardiogram is presented as two waveforms (a) original waveform of the heart sound and (b) waveform after wavelet transform. Heart murmurs are located between the first (S1) and the second (S2) heart sounds.
