TY - CHAP U1 - Konferenzveröffentlichung A1 - Heinke, Matthias A1 - Tumampos, Jonas ED - Lhotska, Lenka ED - Sukupova, Lucie ED - Lacković, Igor ED - Ibbott, Geoffrey S. T1 - Spectral Analysis of Signal Averaging Electrocardiography in Atrial and Ventricular Tachycardia Arrhythmias T2 - World Congress on Medical Physics and Biomedical Engineering 2018 : Conference Proceedings N2 - Targeting complex fractionated atrial electrocardiograms by automated algorithms during ablation of persistent atrial fibrillation has produced conflicting outcomes in previous electrophysiological studies and catheter ablation of atrial fibrillation and ventricular tachycardia. The aim of the investigation was to evaluate atrial and ventricular high frequency fractionated electrical signals with signal averaging technique. Methods: Signal averaging electrocardigraphy allows high resolution ECG technique to eliminate interference noise signals in the recorded ECG. The algorithm use automatic ECG trigger function for signal averaged transthoracic, transesophageal and intra-cardiac ECG signals with novel LabVIEW software. Results: The analysis in the time domain evaluated fractionated atrial signals at the end of the signal averaged P-wave and fractionated ventricular signals at the end of the QRS complex. We evaluated atrial flutter in the time domain with two-to-one atrioventricular conduction, 212.0 ± 4.1 ms atrial cycle length, 426.0 ± 8.2 ms ventricular cycle length, 58.2 ± 1.8 ms P-wave duration, 119.6 ± 6.4 ms PQ duration, 103.0 ± 2.4 ms QRS duration and 296.4 ± 6.8 ms QT duration. The analysis in the frequency domain evaluated high frequency fractionated atrial signals during the P-wave and high frequency fractionated ventricular signals during QRS complex. Conclusions: Spectral analysis of signal averaging electrocardiography with novel LabVIEW software can be utilized to evaluate atrial and ventricular conduction delays in patients with atrial fibrillation and ventricular tachycardia. Complex fractionated atrial and ventricular electrocardiograms may be useful parameters to evaluate electrical cardiac bradycardia and tachycardia signals in atrial fibrillation and ventricular tachycardia ablation. KW - Signal averaging ECG KW - Spectral-temporal mapping KW - Fractionated ventricular signals KW - Fractionated atrial signals KW - Atrial fibrillation KW - Ventricular tachycardia Y1 - 2018 SN - 1433-9277 SS - 1433-9277 SN - 978-981-10-9037-0 (Print) SB - 978-981-10-9037-0 (Print) SN - 978-981-10-9038-7 (Online) SB - 978-981-10-9038-7 (Online) U6 - https://doi.org/10.1007/978-981-10-9038-7_26 DO - https://doi.org/10.1007/978-981-10-9038-7_26 VL - 2 SP - 143 EP - 147 S1 - 5 PB - Springer CY - Singapore ER -