| 摘要 |
Apparatus and method for non-invasive diagnosis of cardiovascular and relate d disorders. The system establishes a correspondence between the dynamics of t he wave contour of the arterial pressure pulse and the associated disease state s. The system comprises an input module, a contour signal receiver, and a processing module. The input module utilizes a pressure transducer for takin g a non-invasive measurement of the arterial pulse. The contour signal receive r amplifies, digitizes and normalizes the arterial pressure pulse signal. In t he processing module, the normalized arterial pressure contour is subjected to wavelet analysis, which transforms the dynamics of the time series of arteri al blood pressure contour into multi-resolution wavelet coefficients or signatures. The processing module includes a neural network which is trained to associate the diagnostic features of the transformed arterial pressure contour embedded in the coefficients with a disease condition. After the learning phase, the system is capable of diagnosing known cardiovascular conditions in patients.
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