Search Results - Robust electrogram estimation

Performance assessment of electrode configurations for the estimation of omnipolar electrograms from high density arrays by Castells, Francisco, Ruipérez-Campillo, Samuel, Segarra, Izan, Cervigón, Raquel, Casado-Arroyo, Rubén, Merino, José Luis, Millet, José

“…The aim of this study is to propose a method to reduce the sensitivity of the estimated omnipolar electrogram (oEGM…”
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Reconstruction of Instantaneous Phase of Unipolar Atrial Contact Electrogram Using a Concept of Sinusoidal Recomposition and Hilbert Transform by Kuklik, Pawel, Zeemering, Stef, Maesen, Bart, Maessen, Jos, Crijns, Harry J., Verheule, Sander, Ganesan, Anand N., Schotten, Ulrich

“… Here, we explore the properties of Hilbert transform applied to unipolar epicardial electrograms and devise a method for robust phase reconstruction using the Hilbert transform…”
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Personalized Models of Human Atrial Electrophysiology Derived From Endocardial Electrograms by Corrado, Cesare, Whitaker, John, Chubb, Henry, Williams, Steven, Wright, Matthew, Gill, Jaswinder, O'Neill, Mark D., Niederer, Steven A.

“…Objective : Computational models represent a novel framework for understanding the mechanisms behind atrial fibrillation (AF) and offer a pathway for…”
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Comparative Study of Methods for Cycle Length Estimation in Fractionated Electrograms of Atrial Fibrillation by Osorio, Diego, Vraka, Aikaterini, Moreno-Arribas, José, Bertomeu-González, Vicente, Alcaraz, Raúl, Rieta, José J.

“…Atrial cycle length (CL) is an important feature for the analysis of electrogram (EGM…”
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Comparative Evaluation of Methodologies for T-Wave Alternans Mapping in Electrograms by Orini, Michele, Hanson, Ben, Monasterio, Violeta, Martinez, Juan Pablo, Hayward, Martin, Taggart, Peter, Lambiase, Pier

“…Electrograms (EGM) recorded from the surface of the myocardium are becoming more and more accessible. T-wave alternans (TWA…”
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An Uncertainty Modeling Framework for Intracardiac Electrogram Analysis by Koneshloo, Amirhossein, Du, Dongping, Du, Yuncheng

“…Intracardiac electrograms (EGMs) are electrical signals measured within the chambers of the heart, which can be used to locate abnormal cardiac tissue and guide catheter ablations to treat cardiac arrhythmias…”
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Iterative Method to Detect Atrial Activations and Measure Cycle Length From Electrograms During Atrial Fibrillation by Ng, Jason, Sehgal, Vinod, Ng, Justin K., Gordon, David, Goldberger, Jeffrey J.

“…Atrial fibrillation (AF) electrograms are characterized by varying morphologies, amplitudes, and cycle lengths (CLs…”
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Mapping the Organization of Atrial Fibrillation with Basket Catheters Part I: Validation of a Real-Time Algorithm by BARBARO, VINCENZO, BARTOLINI, PIETRO, CALCAGNINI, GIOVANNI, CENSI, FEDERICA, MORELLI, SANDRA, MICHELUCCI, ANTONIO

“… The algorithm is based on a fast method to estimate the number of points along the baseline of a single bipolar electrogram…”
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Fundamental Frequency and Regularity of Cardiac Electrograms With Fourier Organization Analysis by Barquero-Pérez, Óscar, Rojo-Álvarez, José Luis, Caamaño, Antonio J., Goya-Esteban, Rebeca, Everss, Estrella, Alonso-Atienza, Felipe, Sánchez-Muñoz, Juan José, García-Alberola, Arcadi

“…Dominant frequency analysis (DFA) and organization analysis (OA) of cardiac electrograms (EGMs…”
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Classification of intracavitary electrograms in atrial fibrillation using information and complexity measures by Nicolet, Jonathan J.C., Restrepo, Juan F., Schlotthauer, Gastón

“…•Our selected features in AEGMs characterization are robust to the used classifier…”
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Deconvolution and wavelet-based methods for membrane current estimation from simulated fractionated electrograms by Chouvarda, I., Maglaveras, N., de Bakker, J.M.T., van Capelle, F.J.L., Pappas, C.

“… The input is an array of electrograms positioned on grid-points of a rectangular grid and the output is an array of estimates of the membrane current…”
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Circle Method for Robust Estimation of Local Conduction Velocity High-Density Maps From Optical Mapping Data: Characterization of Radiofrequency Ablation Sites by Siles-Paredes, Jimena G., Crowley, Christopher J., Fenton, Flavio H., Bhatia, Neal, Iravanian, Shahriar, Sandoval, Italo, Pollnow, Stefan, Dössel, Olaf, Salinet, João, Uzelac, Ilija

“… The morphology and amplitude of bipolar electrograms depend on the direction of propagating electrical wavefront, making identification of low-amplitude signal sources commonly associated with fibrotic area difficulty…”
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Inflection point analysis: A machine learning approach for extraction of IEGM active intervals during atrial fibrillation by Hajimolahoseini, Habib, Hashemi, Javad, Gazor, Saeed, Redfearn, Damian

“… In this paper, we propose a novel algorithm to extract the active intervals of intracardiac electrograms during atrial fibrillation…”
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Evaluation and optimization of novel extraction algorithms for the automatic detection of atrial activations recorded within the pulmonary veins during atrial fibrillation by Prudat, Yann, Luca, Adrian, Yazdani, Sasan, Derval, Nicolas, Jaïs, Pierre, Roten, Laurent, Berte, Benjamin, Pruvot, Etienne, Vesin, Jean-Marc, Pascale, Patrizio

“…Background and objective The automated detection of atrial activations (AAs) recorded from intracardiac electrograms (IEGMs…”
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Technical Considerations for Dominant Frequency Analysis by NG, JASON, KADISH, ALAN H., GOLDBERGER, JEFFREY J.

“…Introduction: Dominant frequency (DF) analysis of atrial electrograms has been used to characterize atrial fibrillation (AF…”
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Analysis of the robustness of spectral indices during ventricular fibrillation by Requena-Carrión, Jesús, Alonso-Atienza, Felipe, Everss, Estrella, Sánchez-Muñoz, Juan José, Ortiz, Mercedes, García-Alberola, Arcadi, Rojo-Álvarez, José Luis

“…•The dominant frequency is a robust spectral index.•Indices depending on the spectral envelope of cardiac signals are non-robust…”
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Optimizing Multiscale Entropy Approach for Rotor Core Identification using Simulated Intracardiac Electrograms by Ravikumar, Vasanth, Tolkacheva, Elena G.

“… Rotors are believed to maintain AF and core of rotors are considered to be robust targets for ablation…”
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Robust adaptive parameter estimators in arrhythmia detection by Clarkson, P M, Fan, Q, Williamson, G A, Arzbaecher, R

“…The authors consider the statistical analysis of threshold crossing intervals, as applied to estimation of tachycardia rates from intracavitary electrograms…”
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Detecting activations in unipolar epicardial electrograms recorded during ventricular fibrillation by Blanchard, S.M., Tohmaz, A.S., Cervino, D.J., Pool, T.S., Clark, B.P., Johnson, E.E., Ideker, R.E.

“…Detecting activations (ACTs) from unipolar electrograms (UEGs) is difficult during ventricular fibrillation (VF…”
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Effects of Prior Data on the Inference and Filtering Based Electrocardiographic Imaging by Erenler, Taha, Dogrusoz, Yesim Serinagaoglu

“…Statistical estimation techniques with "good" prior information improves the accuracy of electrocardiographic imaging (ECGI…”
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