Fig. 6
Selected traces with prominent atrial signal and prominent HB signal recorded using the real-time stimulation recording system. Arrows in orange point to atrial activations. Arrows in green point to HB activations. Left column: raw traces during normal sinus rhythm (top two) and VF (bottom two). Right column: spatial derivative traces during normal sinus rhythm (top two) and VF (bottom two). All atrial and HB traces are from the same respective electrodes