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Voltage during atrial fibrillation is superior to voltage during sinus rhythm in localizing areas of delayed enhancement on magnetic resonance imaging: An assessment of the posterior left atrium in patients with persistent atrial fibrillation

التفاصيل البيبلوغرافية
العنوان: Voltage during atrial fibrillation is superior to voltage during sinus rhythm in localizing areas of delayed enhancement on magnetic resonance imaging: An assessment of the posterior left atrium in patients with persistent atrial fibrillation
المؤلفون: Qureshi, N, Kim, S, Cantwell, C, Afonso, V, Bai, WJ, Ali, R, Shun-Shin, M, Louisa, M-L, Luther, V, Leong, K, Lim, E, Wright, I, Nagy, S, Hayat, S, Ng, FS, Koa-Wing, M, Linton, N, Lefroy, D, Whinnett, Z, Davies, DW, Kanagaratnam, P, Peters, N, Lim, PB
المساهمون: British Heart Foundation, Rosetrees Trust, Imperial College Healthcare NHS Trust- BRC Funding, Wellcome Trust, Hansen Medical, Inc, St Jude Medical UK Ltd, Medical Research Council (MRC)
المصدر: Heart Rhythm
بيانات النشر: Elsevier, 2019.
سنة النشر: 2019
مصطلحات موضوعية: Male, Cardiac & Cardiovascular Systems, ROTORS, Magnetic Resonance Imaging, Cine, Article, Magnetic resonance imaging, 0903 Biomedical Engineering, Humans, Heart Atria, Atrial fibrillation voltage, Correlation of Data, 1102 Cardiorespiratory Medicine and Haematology, Science & Technology, LESIONS, ASSOCIATION, QUANTIFICATION, Atrial fibrosis, Middle Aged, Atrial fibrillation, Fibrosis, SCAR, Cardiovascular System & Hematology, Cardiovascular System & Cardiology, Catheter Ablation, Female, TACHYCARDIA, Electrophysiologic Techniques, Cardiac, Life Sciences & Biomedicine, INTEGRATION, MRI
الوصف: Background Bipolar electrogram voltage during sinus rhythm (VSR) has been used as a surrogate for atrial fibrosis in guiding catheter ablation of persistent atrial fibrillation (AF), but the fixed rate and wavefront characteristics present during sinus rhythm may not accurately reflect underlying functional vulnerabilities responsible for AF maintenance. Objective The purpose of this study was determine whether, given adequate temporal sampling, the spatial distribution of mean AF voltage (VmAF) better correlates with delayed-enhancement magnetic resonance imaging (MRI-DE)–detected atrial fibrosis than VSR. Methods AF was mapped (8 seconds) during index ablation for persistent AF (20 patients) using a 20-pole catheter (660 ± 28 points/map). After cardioversion, VSR was mapped (557 ± 326 points/map). Electroanatomic and MRI-DE maps were co-registered in 14 patients. Results The time course of VmAF was assessed from 1–40 AF cycles (∼8 seconds) at 1113 locations. VmAF stabilized with sampling >4 seconds (mean voltage error 0.05 mV). Paired point analysis of VmAF from segments acquired 30 seconds apart (3667 sites; 15 patients) showed strong correlation (r = 0.95; P
اللغة: English
تدمد: 1556-3871
1547-5271
URL الوصول: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::e4ee487d9dd875b29b58b6c4b0ab063d
http://europepmc.org/articles/PMC6722483
حقوق: OPEN
رقم الأكسشن: edsair.pmid.dedup....e4ee487d9dd875b29b58b6c4b0ab063d
قاعدة البيانات: OpenAIRE
الوصف
تدمد:15563871
15475271