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Figure 4 Three fluoroscopic images (A to C) of sequential magnetic catheter navigation at three different locations of mitral valve annulus for mapping. The figure shows how we can deflect the catheter and maintain a good contact remotely. The electrograms inset (A to C) in the second column shows the typical appearance of the corresponding mitral annular electrogram recorded from the magnetic ablation catheter aligned with the magnetic field vector (white line catheter). Consistent atrial and ventricular electrogram recordings demonstrate a stable catheter contact at the three predefined mitral annular locations.