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Noninvasive imaging of the origin of premature ventricular activity

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064173%3A_____%2F19%3AN0000087" target="_blank" >RIV/00064173:_____/19:N0000087 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11120/19:43916762

  • Result on the web

    <a href="http://dx.doi.org/10.1007/978-981-10-9035-6_18" target="_blank" >http://dx.doi.org/10.1007/978-981-10-9035-6_18</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/978-981-10-9035-6_18" target="_blank" >10.1007/978-981-10-9035-6_18</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Noninvasive imaging of the origin of premature ventricular activity

  • Original language description

    The localization and imaging of the origin of premature ventricular complex (PVC) before the electrophysiological study (EPS) can significantly shorten the time needed for the ablation procedure. In this paper, a method allowing noninvasive localization of the PVC origin by solving the inverse problem of electrocardiography and finding a dipolar source best representing the initial ectopic activity is presented. It requires measurement of body surface potential (BSP) maps and a model of the patient torso obtained from CT. To test the method, 96 ECG leads were measured in 5 patients and 128 leads in another 2 patients. BSP maps from the initial interval of several PVCs were used to solve the inverse problem using inhomogeneous (IT) or simplified homogeneous (HT) patient specific torso model. All measured ECG leads, as well as only selected 64, 48 or 32 leads of the 96 lead set were used for the inverse computations. The inversely obtained dipole locations were compared with the catheter positions during successful ablation within the EPS. In five patients the PVC origin was found in the right ventricular outflow tract (RVOT), in the remaining two patients it was in the left ventricle (LV). The noninvasive method localized the PVC origins in correct heart segments in all but one patient with localization errors of up to about 2 cm. In one patient the true origin in RVOT was localized in LV but still within 2 cm from the true position. The employment of the more detailed IT torso model did not bring significant improvement of the localization but the dispersion of solutions from different PVCs increased. The use of subsets of 48 or less ECG leads resulted in increased number of incorrect localizations. If the IT torso model was employed, there were a few incorrect localizations also when 64 ECG leads were used.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    30201 - Cardiac and Cardiovascular systems

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    World Congress on Medical Physics and Biomedical Engineering 2018

  • ISBN

    978-981-10-9035-6

  • ISSN

  • e-ISSN

  • Number of pages

    5

  • Pages from-to

    97-101

  • Publisher name

    Springer

  • Place of publication

    New York

  • Event location

    Praha

  • Event date

    Jun 3, 2018

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000450908300018