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Signal Processing

Cardiac conduction properties exhibit large variability between patients and affect patient-specific arrhythmia mechanisms. We developed and compared multiple methodologies for calculating the conduction velocity of the propagation wavefront and for phase mapping of atrial fibrillation data.

Methodology for estimating conduction velocity on an atrial surface mesh [1]

Further reading:
[1] A technique for measuring anisotropy in atrial conduction to estimate conduction velocity and atrial fibre direction
[2] The Impact of Electrogram Type and Conduction Velocity Estimation Techniques on Assessments of Conduction Velocity During Ventricular Substrate Mapping
[3] Techniques for automated local activation time annotation and conduction velocity estimation in cardiac mapping
[4] An automated algorithm for determining conduction velocity, wavefront direction and origin of focal cardiac arrhythmias using a multipolar catheter
[5] Gaussian Process Manifold Interpolation for Probabilistic Atrial Activation Maps and Uncertain Conduction Velocity
[6] Cardiac Propagation Pattern Mapping With Vector Field for Helping Tachyarrhythmias Diagnosis With Clinical Tridimensional Electro-Anatomical Mapping Tools
[7] Rotor Tracking Using Phase of Electrograms Recorded During Atrial Fibrillation
[8] Unraveling the Underlying Arrhythmia Mechanism in Persistent Atrial Fibrillation: Results From the STARLIGHT Study
[9] Analytical approaches for myocardial fibrillation signals