A Concept for Myocardial Current Density Estimation with Magnetoelectric Sensors

In this paper we present a novel noninvasive approach to estimate current densities in the heart from magne-tocardiography. The proposed algorithm uses nested optimization to model current densities in equally-sized voxels of myocardial tissue. First-order Thiran all-pass fi lters are used to describe the propagation between voxels. We demonstrate feasibility of the algorithm for a noise-free single-layer simulation. However, challenges remain, such as addressing measurement noise and optimizing propagation velocity. Overall, this approach has the potential to complement or replace invasive catheter-based electrophysiological studies for localization of arrhythmogenic tissue.

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