A Method For Removing Pacing Artifacts From Ultra-High-Frequency Electrocardiograms

0509018 - ÚPT 2020 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Andrla, Petr - Plešinger, Filip - Halámek, Josef - Leinveber, P. - Viščor, Ivo - Jurák, Pavel
A Method For Removing Pacing Artifacts From Ultra-High-Frequency Electrocardiograms.
Computing in Cardiology 2018. Vol. 45. New York: IEEE, 2018, č. článku 8744043. E-ISSN 2325-887X.
[Computing in Cardiology Conference (CinC) /45./. Maastricht (NL), 23.09.2018-26.09.2018]
Grant CEP: GA ČR GA17-13830S; GA MŠMT(CZ) LO1212
Institucionální podpora: RVO:68081731
Klíčová slova: electrocardiography * patient treatment * time domain analysis
Obor OECD: Medical engineering

Cardiac resynchronization therapy (CRT) is an effective treatment for heart-failure patients with ventricular dyssynchrony. Analysis of ultra-high frequencies in ECG (UHFECG) has been shown to provide precise identification for the selection of CRT recipients, but the use of UHFECG for CRT optimization is limited due to the fact that UHFECG activity is buried under pacemaker stimuli. While removing the rising edge of a stimulus is quite straightforward, the localization and removal of the end of the post-stimulus recharge phase is more complicated due to its very low amplitude and interference with depolarization signals in QRS onset.
12-lead 5 kHz ECG during a 3-10 minute rest period was measured in 19 patients. We detected artifacts as 1.6-ms-long segments with high energy at frequencies of 1400-1900 Hz. We removed the area around the detected peaks in the time domain.
Detection of artifacts, the stimulating pulse and the end of the recharge phase was evaluated against manually annotated marks with sensitivity and specificity of 0.98 and 0.97.
Trvalý link: http://hdl.handle.net/11104/0299832