Spectral Bands Analysis of ECG Derived Signals in Chagasic Patients IFMBE Proceedings CLAIB 2014; 49: 760-763.

DE LA ROSA, EZEQUIEL; FERNÁNDEZ, ELMER ANDRÉS

Parana

Congreso; VI Congreso Latinoamericano de Ingeniería Biomédica CLAIB 2014; 2012

SABI

Abstract?The aim of this work was to evaluate interactions between spectral bands in five time series (TS) signals from five ECG derived measures. These TS were calculated from 11 healthy subjects and 53 chronic Chagasic patients using high resolution electrocardiography (HRECG). Chagasic patients were classified in two groups (I and II) according to their cardiac damage. For each heartbeat, the cardiac vector magni- tud (CVM) was built and the TS were derived from the follow- ing measures: a) QRSonR, the interval duration from the beginning of the CVM to its peak, b) RQRSoff, the interval duration from the peak of CVM to its ending, c) QRSd, the width of the CVM, d) RpAmp, the max amplitude of CVM and e) RR, the interval between two consecutive heartbeats. The TS derived from the first three measures were correlated with the TS from the last two in the High Frequency (HF) [0.15-0.4 Hz], Low Frequency (LF) [0.04-0.15 Hz] and Very Low Fre- quency (VLF) [