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Effect of Elimination of Noisy ECG Leads on the Noninvasive Localization of the Focus of Premature Ventricular Complexes

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064173%3A_____%2F19%3AN0000086" target="_blank" >RIV/00064173:_____/19:N0000086 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/68407700:21460/19:00322285

  • Výsledek na webu

    <a href="http://dx.doi.org/10.1007/978-981-10-9035-6_14" target="_blank" >http://dx.doi.org/10.1007/978-981-10-9035-6_14</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/978-981-10-9035-6_14" target="_blank" >10.1007/978-981-10-9035-6_14</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Effect of Elimination of Noisy ECG Leads on the Noninvasive Localization of the Focus of Premature Ventricular Complexes

  • Popis výsledku v původním jazyce

    High frequency of the premature ventricular complexes (PVCs) can lead to the development of the left ventricular dysfunction. Preoperative noninvasive localization of the PVC focus can decrease the time of the invasive electrophysiological study and improve the success rate of the radiofrequency ablation. Body surface potential (BSP) maps, patient-specific inhomogeneous torso model and inverse solution in terms of single dipole model were used for noninvasive localization of the PVC focus in five patients. BSP maps were computed for the initial 20 ms time interval of the ventricular activation (QRS complex in the ECG) from five selected PVCs in each patient. The inhomogeneous torso model included surfaces of torso, lungs, heart cavities and outflow tracts. To investigate whether the exclusion of the noisy ECG leads improves the accuracy of the inverse solution, the leads with the signal-to-noise ratio (SNR) less than the defined threshold value were excluded from the inverse computations. Four levels of the SNR were defined: 10, 20, 30, 40 dB. Locations of the PVC foci were computed by the inverse solution and compared with the catheter positions during successful radiofrequency ablation performed within invasive electrophysiological study. Removal of noisy ECG leads did not improve the PVC localization when the noisy ECG leads were located in left anterior torso region.

  • Název v anglickém jazyce

    Effect of Elimination of Noisy ECG Leads on the Noninvasive Localization of the Focus of Premature Ventricular Complexes

  • Popis výsledku anglicky

    High frequency of the premature ventricular complexes (PVCs) can lead to the development of the left ventricular dysfunction. Preoperative noninvasive localization of the PVC focus can decrease the time of the invasive electrophysiological study and improve the success rate of the radiofrequency ablation. Body surface potential (BSP) maps, patient-specific inhomogeneous torso model and inverse solution in terms of single dipole model were used for noninvasive localization of the PVC focus in five patients. BSP maps were computed for the initial 20 ms time interval of the ventricular activation (QRS complex in the ECG) from five selected PVCs in each patient. The inhomogeneous torso model included surfaces of torso, lungs, heart cavities and outflow tracts. To investigate whether the exclusion of the noisy ECG leads improves the accuracy of the inverse solution, the leads with the signal-to-noise ratio (SNR) less than the defined threshold value were excluded from the inverse computations. Four levels of the SNR were defined: 10, 20, 30, 40 dB. Locations of the PVC foci were computed by the inverse solution and compared with the catheter positions during successful radiofrequency ablation performed within invasive electrophysiological study. Removal of noisy ECG leads did not improve the PVC localization when the noisy ECG leads were located in left anterior torso region.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    30201 - Cardiac and Cardiovascular systems

Návaznosti výsledku

  • Projekt

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2019

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    World Congress on Medical Physics and Biomedical Engineering 2018

  • ISBN

    978-981-10-9034-9

  • ISSN

  • e-ISSN

  • Počet stran výsledku

    5

  • Strana od-do

    75-79

  • Název nakladatele

    Springer

  • Místo vydání

    New York

  • Místo konání akce

    Praha

  • Datum konání akce

    3. 6. 2018

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku

    000450908300014