Method & system for processing electrocardial signals

Details Method & system for processing electrocardial signals Method & system for processing electrocardial signals

A - Human Necessities

61

B

A61B 5/0402 (2006.01) A61B 5/0452 (2006.01) A61B 5/0472 (2006.01)

Patent

CA 2470767

Known methods of heart function analysis, while useful, suffer from a number of limitations. These include the fact that these methods are inherently static, in that they consider an individual ECG that can only provide a picture of heart function at a particular moment in time. Furthermore, the assessment depends upon the expertise of specialists performing a visual analysis of ECG traces, which may be subjective, and of limited sensitivity. The present invention provides a method of processing ECG signals. The method comprises the steps of extracting data from at least one ECG signal determining a time derivative of said data and generating a normalised index value representative of the energy in said time derivative. Accordingly, the method provides an index that may be used as an objective indication of heart function, and recorded for an individual patient over a period of time as a dynamic record of any change in heart function of the patient that may be indicative of abnormal function or heart disease.

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