Noninvasive Estimation of Epicardial Dominant High-Frequency Regions During Atrial Fibrillation.
Noninvasive Estimation of Fibrillation Frequencies Introduction Ablation of high dominant frequency (DF) sources in patients with atrial fibrillation (AF) is an effective treatment option for paroxysmal AF. The aim of this study was to evaluate the accuracy of noninvasive estimation of DF and electr...
| Publicado en: | Journal of Cardiovascular Electrophysiology Vol. 27; no. 4; pp. 435 - 443 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | equations & formulas pictorial research tables/charts tracings Journal Article |
| Publicado: |
Wiley-Blackwell
Apr2016
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=114514219&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 114514219 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10453873 GSB jtl: Journal of Cardiovascular Electrophysiology issn: 10453873 maglogo: Y pubinfo: dt: Apr2016 vid: 27 iid: 4 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 114514219 114514219 114514219 10.1111/jce.12931 114514219 ppf: 435 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Noninvasive Estimation of Epicardial Dominant High-Frequency Regions During Atrial Fibrillation. aug: au: PEDRÓN‐TORRECILLA, JORGE RODRIGO, MIGUEL CLIMENT, ANDREU M. LIBEROS, ALEJANDRO PÉREZ‐DAVID, ESTHER BERMEJO, JAVIER ARENAL, ÁNGEL MILLET, JOSÉ FERNÁNDEZ‐AVILÉS, FRANCISCO BERENFELD, OMER ATIENZA, FELIPE GUILLEM, MARÍA S. affil: ITACA, Universitat Politècnica de València, Valencia Spain sug: subj: Atrial Fibrillation Diagnosis Heart Atrium Innervation Body Surface Potential Mapping Methods Noninvasive Procedures Cardiac Patients Models, Statistical Comparative Studies Human Atrial Fibrillation Surgery Catheter Ablation Male Adult Middle Age Tomography, X-Ray Computed Action Potentials Computer Simulation Adult: 19-44 years Middle Aged: 45-64 years Male ab: Noninvasive Estimation of Fibrillation Frequencies Introduction Ablation of high dominant frequency (DF) sources in patients with atrial fibrillation (AF) is an effective treatment option for paroxysmal AF. The aim of this study was to evaluate the accuracy of noninvasive estimation of DF and electrical patterns determination by solving the inverse problem of the electrocardiography. Methods Four representative AF patients with left-to-right and right-to-left atrial DF patterns were included in the study. For each patient, intracardiac electrograms from both atria were recorded simultaneously together with 67-lead body surface recordings. In addition to clinical recordings, realistic mathematical models of atria and torso anatomy with different DF patterns of AF were used. For both mathematical models and clinical recordings, inverse-computed electrograms were compared to intracardiac electrograms in terms of voltage, phase, and frequency spectrum relative errors. Results Comparison between intracardiac and inverse computed electrograms for AF patients showed 8.8 ± 4.4% errors for DF, 32 ± 4% for voltage, and 65 ± 4% for phase determination. These results were corroborated by mathematical simulations showing that the inverse problem solution was able to reconstruct the frequency spectrum and the DF maps with relative errors of 5.5 ± 4.1%, whereas the reconstruction of the electrograms or the instantaneous phase presented larger relative errors (i.e., 38 ± 15% and 48 ± 14 % respectively, P < 0.01). Conclusions Noninvasive reconstruction of atrial frequency maps can be achieved by solving the inverse problem of electrocardiography with a higher accuracy than temporal distribution patterns. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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