Evaluation of Inverse Electrocardiography Solutions Based on Signal-Averaged Beats to Localize the Origins of Spontaneous Premature Ventricular Contractions in Humans

Serinağaoğlu Doğrusöz Y., Rasoolzadeh N., Ondrusova B., Hlivak P., Svehlikova J.

Functional Imaging and Modeling of the Heart - 12th International Conference, FIMH 2023, Proceedings, Lyon, Fransa, 19 - 22 Haziran 2023, cilt.13958 LNCS, ss.166-174 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 13958 LNCS
  • Doi Numarası: 10.1007/978-3-031-35302-4_17
  • Basıldığı Şehir: Lyon
  • Basıldığı Ülke: Fransa
  • Sayfa Sayıları: ss.166-174
  • Anahtar Kelimeler: Electrocardiographic imaging, Inverse problem, Signal averaging, Source localization, Spontaneous PVC
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The signal averaging approach applied to the clinical body surface potential measurements was studied and evaluated for localizing the spontaneous premature ventricular contractions (PVC) on the data of three patients. For each patient, more than 200 beats were extracted from the ECG signal and aligned with respect to the R-peak of the QRS complex. Then, the origin of the PVC was computed from the inversely estimated heart surface potentials and activation times for each individual beat and the averaged one. It was shown that the result from the averaged beat did not differ more than 2 mm from the mean or median of the results from individual beats. Signal averaging of clinical signals leads to reliable results and saves the needed computational time.