Method and device for detecting heart failure based on electro-cardio interval sequence normalization histogram
A detection method and histogram technology, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve the problems of unclear physical meaning of indicators, sensitivity to external noise, and gaps.
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[0055] Such as figure 1 As shown, the heart failure detection method based on the normalized histogram of the ECG interval sequence of the present invention first collects the ECG signal of the subject, and performs filtering, denoising, amplification and analog-to-digital conversion on the ECG signal, formed as figure 2 The electrocardiogram waveform shown. The wavelet modulus maximum algorithm is used to extract the position of the ECG R peak, and the extracted R peak is constructed as follows: figure 2 The ECG interval sequence is shown, and then the validity of the ECG interval sequence is checked: if the element value in the sequence is at the set lower threshold T d and upper threshold T u Within the range, the sequence is valid, otherwise the sequence is invalid and needs to be obtained again.
[0056] image 3 A schematic diagram of seven types of intervals divided according to the elements of the ECG interval sequence is given. Divide the elements of the ECG ...
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