Alternating T-wave measuring method for sports electrocardiogram

Abstract

The present invention belongs to the field of medical test technology, and the T-wave alternation measuring method for sports electrocardiogram beings from the No.113 beat of electrocardiogram signal and analyzes in 16 beats as one analysis window unit. Maximum heart rate is first judged to estimate the noise level. The power spectrum is then analyzed and judged based on noise, whether to exist obvious RR interphase alternation is judged, and if no, the ratio of component at 0.25 and the alternative component before deducing noise level is calculated. When the ratio is smaller than some value, obvious T-wave alternation is considered found out. The method of the present invention solves the problem of detecting weak T-wave alternation signal for predicting malignant arrhythmia.

Description

technical field [0001] The invention relates to a detection method for T wave alternation in an exercise electrocardiogram, which belongs to the technical field of medical detection. Background technique [0002] Malignant ventricular arrhythmia is a heart disease that poses a great threat to human life safety. It is a major factor in the loss of life in developed countries such as Europe and the United States. Therefore, the prediction of malignant ventricular arrhythmia in these countries has always been at the forefront Discussion questions. At present, the relatively accepted predictive method is electrophysiological examination of cardiac catheterization, that is, programmed electrical stimulation (PES) in the cardiac chamber, which uses a programmed stimulator to deliver 2 or 3 electrical stimulators under program control to the right atrium through cardiac catheter electrodes. If ventricular tachycardia (VT) can be induced, it means that there is a material basis for...

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Problems solved by technology

[0006] Compared with a large number of clinical studies carried out abroad, my country's research in this area is relatively lagging behind. The possible reason is that compared with developed countries, the number of malignant ventricular arrhythmias in my country is still relatively small, and has not yet attracted widespread attention.

On the other hand, the T-wave alternation visible to the naked eye is relatively rare, and it is difficult to detect the T-wave alternation that is invisible to the naked eye, that is, microvolts, and requires corresponding detection equipment, but there is no such equipment in China at present.

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