Electrocardiosignal spectral analysis in standard lead I for identification of low-amplitude potentials with the help of portable cardio analyzers

This paper proposes a spectral analysis method for electrocardiosignal in I standard lead for identification of late ventricular potentials. A criterion for identifying the presence or absence of late ventricular potential is proposed which consists in a ratio of the high frequency part of electrocardiosignal to its low frequency section. Threshold values for identifying late ventricular potentials have been identified.