| 摘要 |
<p>The present invention relates to a system (10) and a process for detecting, assessing, grading and diagnosing heart conditions in human beings. The system includes device(s) (22, 26, 34) for providing or generating an acoustic blood flow signal and a signal representative of the electrical activity of a subject's heart, a conditioning circuit (16) for processing the electrical activity (ECG) signal to provide a timing or calibration signal having QRS spikes at the onset of each systolic portion of a heart cycle, and a conditioning circuit (14) for the acoustic blood flow (MCG) signal to filter out unwanted noise and to amplify low frequency sounds. The calibration signal and the MCG signal thus conditioned are fed into a microprocessor (18) wherein the MCG signal is converted in a spectral pattern of heart sounds and matched with the timing signal. The output from the microprocessor is a combined, real time MCG pattern/ECG wave signal.</p> |
