Rodrigo Bort, M.; Martínez Climent, A.; Liberos Mascarell, A.; Fernández-Avilés, F.; Berenfeld, O.; Atienza, F.; Guillem Sánchez, MS. (2017). Technical Considerations on Phase Mapping for Identification of Atrial Reentrant Activity in Direct- and Inverse-Computed Electrograms. Circulation Arrhythmia and Electrophysiology. 10(9):1-13. https://doi.org/10.1161/CIRCEP.117.005008
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/152280
Title:
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Technical Considerations on Phase Mapping for Identification of Atrial Reentrant Activity in Direct- and Inverse-Computed Electrograms
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Author:
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RODRIGO BORT, MIGUEL
Martínez Climent, Andreu
Liberos Mascarell, Alejandro
Fernández-Avilés, Francisco
Berenfeld, Omer
Atienza, Felipe
Guillem Sánchez, María Salud
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica
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Issued date:
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Abstract:
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[EN] [Background] Phase mapping has become a broadly used technique to identify atrial reentrant circuits for ablative therapy guidance. This work studies the phase mapping process and how the signal nature and its filtering ...[+]
[EN] [Background] Phase mapping has become a broadly used technique to identify atrial reentrant circuits for ablative therapy guidance. This work studies the phase mapping process and how the signal nature and its filtering affect the reentrant pattern characterization in electrogram (EGM), body surface potential mapping, and electrocardiographic imaging signals.
[Methods and Results] EGM, body surface potential mapping, and electrocardiographic imaging phase maps were obtained from 17 simulations of atrial fibrillation, atrial flutter, and focal atrial tachycardia. Reentrant activity was identified by singularity point recognition in raw signals and in signals after narrow band-pass filtering at the highest dominant frequency (HDF). Reentrant activity was dominantly present in the EGM recordings only for atrial fibrillation and some atrial flutter propagations patterns, and HDF filtering allowed increasing the reentrant activity detection from 60% to 70% of time in atrial fibrillation in unipolar recordings and from 0% to 62% in bipolar. In body surface potential mapping maps, HDF filtering increased from 10% to 90% the sensitivity, although provoked a residual false reentrant activity ¿30% of time. In electrocardiographic imaging, HDF filtering allowed to increase ¿100% the time with detected rotors, although provoked the apparition of false rotors during 100% of time. Nevertheless, raw electrocardiographic imaging phase maps presented reentrant activity just in atrial fibrillation recordings accounting for ¿80% of time.
[Conclusions] Rotor identification is accurate and sensitive and does not require additional signal processing in measured or noninvasively computed unipolar EGMs. Bipolar EGMs and body surface potential mapping do require HDF filtering to detect rotors at the expense of a decreased specificity.
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Subjects:
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Atrial fibrillation
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Atrial flutter
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Body surface potential mapping
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Electrocardiography
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Circulation Arrhythmia and Electrophysiology. (issn:
1941-3149
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DOI:
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10.1161/CIRCEP.117.005008
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Publisher:
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Ovid Technologies Wolters Kluwer -American Heart Association
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Publisher version:
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https://doi.org/10.1161/CIRCEP.117.005008
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Project ID:
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ISCIII/PI13-01882
...[+]
ISCIII/PI13-01882
ISCIII/PI14/00857
MINECO/TEC2013-46067-R
Instituto de Salud Carlos III/DTS16/00160
ISCIII/PI16/01123
MINECO/IJCI-2014-22178
MICINN/RD12.0042.0001
NHLBI/P01-HL039707
NHLBI/P01-HL087226
NHLBI/R01-HL118304
GENERALITAT VALENCIANA/ACIF/2013/021
INS.SALUD CARLOS III/PI13/00903
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Thanks:
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This study was supported, in part, by Universitat Politecnica de Valencia through its research initiative program; Generalitat Valenciana Grants (ACIF/2013/021); the Instituto de Salud Carlos III (Ministry of Economy and ...[+]
This study was supported, in part, by Universitat Politecnica de Valencia through its research initiative program; Generalitat Valenciana Grants (ACIF/2013/021); the Instituto de Salud Carlos III (Ministry of Economy and Competitiveness, Spain: PI13-01882, PI13-00903, PI14/00857, PI16/01123, TEC2013-46067-R, DTS16/0160, and IJCI-2014-22178); Spanish Society of Cardiology (Grant for Clinical Research in Cardiology 2015); Spanish Ministry of Science and Innovation (Red RIC RD12.0042.0001); and the National Heart, Lung, and Blood Institute (P01-HL039707, P01-HL087226, and Q1 R01-HL118304) and cofounded by FEDER.
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Type:
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Artículo
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