Delay-Based Regularization for ECG Imaging of Transmembrane Voltages

We suggest a new regularization method for reconstruction of cardiac trans-membrane voltages (TMV) from body surface potentials that is based on imposing similarity between time-aligned TMVs. An iterative scheme is proposed to update the delays needed for time-alignment. Evaluation of the method using simulated ventricular pacings showed a clear improvement over second order Tikhonov.